Types Of Ecological Pyramid Quiz

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    In an ecological pyramid,_______ of energy is transferred from one trophic level to the next.

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About This Quiz

Explore key ecological concepts with this quiz on types of ecological pyramids. Assess your understanding of biomass, nitrogen fixation, food webs, and biogeochemical cycles. Ideal for students looking to deepen their knowledge of ecosystem dynamics and interactions.

Types Of Ecological Pyramid Quiz - Quiz

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  • 2. 

    Heterotroph that eats only plants

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Herbivore
    Explanation
    A herbivore is a heterotroph that eats only plants. In an ecosystem, herbivores play a crucial role as primary consumers, feeding directly on plants. They obtain energy and nutrients from the plant material they consume. Herbivores are an essential component of the food chain and food web, as they serve as a food source for other organisms, such as carnivores and omnivores. By consuming plants, herbivores help regulate plant populations and maintain the balance of the ecosystem.

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  • 3. 

    Energy is "lost" at each trophic level in the form of _______ energy

    • Carbon

    • Water

    • Nitrogen

    • Heat

    Correct Answer
    A. Heat
    Explanation
    Energy is "lost" at each trophic level in the form of heat. This is because energy is transferred from one trophic level to another through the consumption of organisms, but not all of the energy is absorbed and used by the consumer. Some energy is lost as heat during metabolic processes such as respiration. This heat energy is unable to be converted back into usable energy by other organisms, resulting in a net loss of energy as it moves up the food chain.

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  • 4. 

    Heterotroph that consumes both plants and animals.

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Omnivore
    Explanation
    An omnivore is a heterotroph that consumes both plants and animals. This means that it has a varied diet and can obtain nutrients from both plant and animal sources. Unlike herbivores, which only consume plants, and carnivores, which only consume animals, omnivores have the ability to adapt to different food sources and environments. They play an important role in the food chain and food web by consuming both producers (plants) and consumers (animals), and they contribute to the cycling of nutrients through the biogeochemical cycle.

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  • 5. 

    Which of these species might be classified as a pioneer species?

    • Ponderosa pine

    • Pin oak

    • Choke cherry bush

    • Lichen

    Correct Answer
    A. Lichen
    Explanation
    Lichen might be classified as a pioneer species because it is one of the first organisms to colonize barren or disturbed areas, such as rocks or bare soil. Lichen is a symbiotic association between fungi and algae or cyanobacteria, and it can survive in harsh conditions with minimal nutrients. Its ability to grow in inhospitable environments and facilitate soil formation makes it an important species in the early stages of ecological succession.

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  • 6. 

    The ultimate source of energy for most biomes on earth is the

    • Autotroph

    • Earth

    • Calorie

    • Sun

    Correct Answer
    A. Sun
    Explanation
    The ultimate source of energy for most biomes on earth is the Sun. The Sun provides light and heat energy, which is essential for the process of photosynthesis carried out by autotrophs. Autotrophs, such as plants, algae, and some bacteria, use the energy from the Sun to convert carbon dioxide and water into glucose and oxygen. This process forms the basis of the food chain, as other organisms, such as herbivores, carnivores, and omnivores, rely on autotrophs for energy. Without the Sun's energy, life on Earth would not be sustainable.

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  • 7. 

    The transformation of water from a liquid to a gas as it passes through pores in plants' leaves is referred to as

    • Precipitation

    • Condensation

    • Transpiration

    • Translocation

    Correct Answer
    A. Transpiration
    Explanation
    Transpiration is the correct answer because it refers to the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems, and flowers. This process involves the transformation of water from a liquid to a gas as it passes through pores in plants' leaves, known as stomata. Transpiration plays a crucial role in plant physiology, as it helps in the absorption of nutrients from the soil and the regulation of temperature in plants.

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  • 8. 

    Primary succes-sion describes the events that take place on a hillside that has experienced a destructive mudslide.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Primary succession refers to the process of ecological succession that occurs in an area that has never been colonized before, such as a newly formed volcanic island or bare rock. In the given question, it states that the hillside has experienced a destructive mudslide, indicating that the area has been previously colonized and therefore does not meet the criteria for primary succession. Hence, the correct answer is False.

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  • 9. 

    Total mass of living matter at each trophic level.

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Biomass
    Explanation
    Biomass refers to the total mass of living matter at each trophic level. It represents the amount of organic material produced by organisms in an ecosystem. Biomass is an important measure as it indicates the energy available at each trophic level and the overall productivity of the ecosystem. It can be measured by estimating the weight of all the organisms or by calculating the energy stored in their tissues. By understanding the biomass, we can better understand the flow of energy and nutrients through food chains and food webs in an ecosystem.

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  • 10. 

    Ln Colorado forests, a disturbance such as fire that initiates a series of changes leading back to a mature community is an example of primary succession.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    A disturbance such as fire in Colorado forests does not lead to primary succession, but rather secondary succession. Primary succession occurs in areas where there is no existing soil or vegetation, such as after a volcanic eruption or the retreat of a glacier. In these cases, the process starts from scratch and gradually leads to the establishment of a mature community. However, in the case of a fire in Colorado forests, there is already existing soil and vegetation, so the process that follows is secondary succession, where the ecosystem recovers and regrows after the disturbance.

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  • 11. 

    Temperature is a major limiting factor of the tundra biome.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The tundra biome is characterized by extremely cold temperatures, with average temperatures rarely rising above freezing. This extreme cold is a major limiting factor for the growth and survival of plant and animal species in the tundra. The low temperatures restrict the availability of liquid water, limit the growth of plants, and make it difficult for animals to find food. Therefore, it is true that temperature is a major limiting factor of the tundra biome.

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  • 12. 

    Lf you were dropped off on the North American continent at a latitude of 40" N, which of the following climate zones would you discover there?

    • Polar

    • Tropical

    • Temperate

    • Arctic

    Correct Answer
    A. Temperate
    Explanation
    If you were dropped off on the North American continent at a latitude of 40° N, you would discover the temperate climate zone. This is because the temperate climate zone is typically found between the polar and tropical zones, and at a latitude of 40° N, you would be closer to the temperate zone. The temperate zone is characterized by moderate temperatures and distinct seasons, making it suitable for a variety of plant and animal life.

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  • 13. 

    The statement, "the cowbird can tolerate a wide range of temperatures,"characterizes the cowbird's habitat.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    This statement does not characterize the cowbird's habitat. The ability of the cowbird to tolerate a wide range of temperatures does not provide any information about its habitat. Habitat refers to the specific environment or location where a species naturally lives and thrives, including factors such as vegetation, climate, and other ecological conditions. The statement only talks about the cowbird's temperature tolerance, which is not directly related to its habitat.

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  • 14. 

    A bird fluffs its feathers to trap warm air close to its body. Thetemperature of the air next to the bird's skin is a(n) abiotic factor.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Birds fluff their feathers to create a layer of warm air that acts as insulation, helping them maintain their body temperature. The temperature of the air next to the bird's skin is not influenced by living organisms, but rather by the abiotic factors such as the environmental temperature. Therefore, it can be concluded that the temperature of the air next to the bird's skin is indeed an abiotic factor.

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  • 15. 

    A leech feeding on a host organism is an example of a_____ relationship.

    • Asymbiotic

    • Commensalim

    • Mutualistic

    • Parasitic

    Correct Answer
    A. Parasitic
    Explanation
    A leech feeding on a host organism is an example of a parasitic relationship because the leech benefits by obtaining nutrients from the host while the host is harmed or negatively affected. The leech relies on the host for survival and reproduction, while the host experiences negative consequences such as blood loss or potential infection. This type of relationship is characterized by one organism benefiting at the expense of another.

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  • 16. 

    The water in the atmosphere is returned to the earth by

    • Decomposition

    • Precipitation

    • Evaporation

    • Condensation

    Correct Answer
    A. Precipitation
    Explanation
    Precipitation is the correct answer because it refers to the process by which water vapor in the atmosphere condenses into liquid or solid form and falls to the Earth's surface. This includes rain, snow, sleet, and hail. Precipitation is an essential part of the water cycle, as it replenishes the Earth with freshwater, which is important for the survival of plants, animals, and humans. It is through precipitation that the water in the atmosphere returns to the Earth.

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  • 17. 

    Any biome in which the annual rate of evaporation exceeds the rate of precipitation is classified as desert.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    A desert is defined as a biome where the rate of evaporation is higher than the rate of precipitation. This means that more water is lost through evaporation than is gained through rainfall. Therefore, if the annual rate of evaporation exceeds the rate of precipitation in any biome, it is classified as a desert.

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  • 18. 

    An area of forest that experiences very little change in species composition is a pioneer species.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    A pioneer species refers to the first organisms to inhabit a barren or disturbed area, such as after a forest fire or volcanic eruption. They are characterized by their ability to colonize and adapt to harsh conditions. In contrast, an area of forest that experiences very little change in species composition would be considered a climax community, where a stable and diverse ecosystem has been established. Therefore, the given statement is false, as pioneer species are associated with areas undergoing rapid change, not areas with little change.

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  • 19. 

    Model that shows many interconnected food chains and pathways in which energy and matter flow through an ecosystem,

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Food web
    Explanation
    A food web is a model that shows many interconnected food chains and pathways in which energy and matter flow through an ecosystem. It represents the complex interactions between different organisms in an ecosystem, including producers, consumers, and decomposers. Unlike a food chain, which only shows a linear sequence of who eats whom, a food web shows the multiple feeding relationships that exist in an ecosystem. It helps us understand the interconnectedness and interdependence of different species and how energy and nutrients are transferred within the ecosystem.

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  • 20. 

    Process in which nitrogen gas is captured and converted into a form plants can use.

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Nitrogen fixation
    Explanation
    Nitrogen fixation is the process of capturing and converting nitrogen gas into a form that plants can use. This process is essential for the growth and development of plants as they require nitrogen to produce proteins and other essential compounds. Nitrogen fixation is primarily carried out by certain bacteria and some types of plants. These organisms have the ability to convert atmospheric nitrogen into ammonia or other nitrogen compounds that can be absorbed by plants through their roots. This process plays a crucial role in the biogeochemical cycle of nitrogen and helps to maintain the availability of this essential nutrient in ecosystems.

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  • 21. 

    Exchange of matter through the biosphere involving living organisms, chemical processes, andgeological processes.

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Biogeochemical cycle
    Explanation
    A biogeochemical cycle refers to the exchange of matter through the biosphere involving living organisms, chemical processes, and geological processes. This cycle allows for the recycling and redistribution of essential elements such as carbon, nitrogen, and phosphorus, which are necessary for the survival of organisms. It involves processes such as photosynthesis, respiration, decomposition, and nutrient absorption. Through these cycles, elements move between the atmosphere, hydrosphere, lithosphere, and biosphere, maintaining a balance and ensuring the availability of nutrients for living organisms.

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  • 22. 

    Carbon is the only biogeochemical cycle that lacks an atmosphericcomponent.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    This statement is false. The carbon cycle does have an atmospheric component. Carbon dioxide (CO2) is released into the atmosphere through processes such as respiration and combustion. It is also absorbed from the atmosphere through photosynthesis by plants and other organisms. This exchange of carbon between the atmosphere, living organisms, and the Earth's surface is a key part of the carbon cycle.

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  • 23. 

    Simplified model that shows a single path for energy flow through an ecosystem.

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Food chain
    Explanation
    A food chain is a simplified model that shows the flow of energy through an ecosystem. It represents the transfer of energy from one organism to another as they consume each other. The food chain starts with producers, such as plants, which convert sunlight into energy through photosynthesis. Then, primary consumers, such as herbivores, eat the producers. Secondary consumers, such as carnivores, eat the herbivores, and so on. The food chain helps us understand how energy is transferred and passed along in an ecosystem.

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  • 24. 

    Process in which fixed nitrogen compounds are converted back into nitrogen gas and returned to the atmosphere.

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Denitrification
    Explanation
    Denitrification is the correct answer because it refers to the process in which fixed nitrogen compounds, such as nitrates and nitrites, are converted back into nitrogen gas by bacteria. This process occurs in soil, water, and other environments, and it helps to return nitrogen to the atmosphere. Denitrification is an important part of the nitrogen cycle, which is a biogeochemical cycle that involves the movement and transformation of nitrogen through various ecosystems.

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  • 25. 

    Photosynthetic autotrophs remove water from the air as part of one of themajor biogeochemical cycles.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Photosynthetic autotrophs, such as plants, do not remove water from the air as part of any major biogeochemical cycle. Instead, they take in carbon dioxide from the air and convert it into oxygen through the process of photosynthesis. Water is obtained by plants through their roots from the soil, not from the air. Therefore, the statement is false.

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  • 26. 

    The species interaction most frequently represented in a food chain ispredation.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Predation is the most frequently represented species interaction in a food chain because it is a fundamental process in which one organism (predator) hunts, kills, and consumes another organism (prey) for energy and nutrients. This interaction is crucial for maintaining balance and regulating population sizes in ecosystems. Predators help control the population of prey species, preventing them from becoming too abundant and causing negative impacts on the ecosystem. Therefore, predation is a common and essential interaction in food chains.

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  • 27. 

    A food chain

    • Is linear

    • Has less than 3 steps

    • Has overlapping arrows

    • Expresses all feeding relationships in a community

    Correct Answer
    A. Is linear
    Explanation
    A food chain is a linear representation of the flow of energy and nutrients from one organism to another in an ecosystem. It shows the sequence of organisms, with each one being eaten by the next in line. This linear structure helps to illustrate the transfer of energy and the feeding relationships within a community.

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  • 28. 

    Lf lake turnover did not occur, the profundal region would experience a shortage of oxvqen.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Lake turnover is the process in which the layers of water in a lake mix due to changes in temperature and density. This mixing is important because it brings oxygen-rich surface water to the deeper layers, including the profundal region. Without lake turnover, the deeper layers would not receive a fresh supply of oxygen, leading to a shortage of oxygen in the profundal region. Therefore, it is true that if lake turnover did not occur, the profundal region would experience a shortage of oxygen.

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  • 29. 

    A student notices that her guppies reproduce most when her fish tank wateris slightly alkaline. They stop reproducing if the water becomes acidic or too alkaline.  This is an example of

    • Secondary Succession

    • Zones of Tolerance

    • Communities

    • Intertidal zones

    Correct Answer
    A. Zones of Tolerance
    Explanation
    This scenario illustrates the concept of "Zones of Tolerance." The student observes that her guppies reproduce the most when the water in the fish tank is slightly alkaline. This suggests that the guppies have a specific range or zone of tolerance for the pH level of the water. If the water becomes too acidic or too alkaline, the guppies stop reproducing, indicating that they are unable to tolerate extreme pH levels. This concept of organisms having a range of environmental conditions within which they can survive and thrive is known as zones of tolerance.

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  • 30. 

    Animals return nitrogen to the environment when they

    • Urinate

    • Make proteins

    • Respire

    • None of these

    Correct Answer
    A. Urinate
    Explanation
    Animals return nitrogen to the environment when they urinate. Urine contains urea, which is a waste product that contains nitrogen. When animals urinate, the urea is released into the environment, where it can be broken down by bacteria and converted into ammonia, which is then used by plants as a source of nitrogen for growth. Therefore, urination plays a crucial role in the nitrogen cycle, as it helps to recycle nitrogen back into the environment.

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  • 31. 

    The profundal zone contains communities that are layered depending on how long they are submerged by tides.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because the profundal zone is not influenced by tides. The profundal zone is a region in a body of water, such as a lake, that is too deep for sunlight to penetrate. It is characterized by low oxygen levels and is inhabited by organisms adapted to these conditions. The layering of communities based on tide duration is more commonly seen in intertidal zones, where organisms must withstand both submersion and exposure to air.

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  • 32. 

    Primary succession is the most rapid form of succession.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    Primary succession is actually the slowest form of succession. Primary succession occurs in an area that is completely devoid of life, such as a newly formed volcanic island or a retreating glacier. In this process, pioneer species gradually colonize the area and pave the way for other species to establish themselves over time. This process can take hundreds or even thousands of years before a stable community is established. Therefore, the statement that primary succession is the most rapid form of succession is false.

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  • 33. 

    Heterotroph that decomposes organic material and returns the nutrients to soil, air, and water,making the nutrients available to other organisms.

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Detrivore
    Explanation
    A detrivore is an organism that decomposes organic material and returns the nutrients to the soil, air, and water. This process is an important part of the biogeochemical cycle, as it makes the nutrients available to other organisms in the ecosystem. Detrivores play a crucial role in breaking down dead plant and animal matter, releasing essential nutrients back into the environment. They are often found in soil, where they break down organic material and contribute to the recycling of nutrients.

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  • 34. 

    Process by which one community replaces another community because of changing abiotic and biotic factors.

    • Abyssal zone

    • Aphotic zone

    • Benthic zone

    • Climax community

    • Ecological succession

    • Intertidal zone

    • Limiting factor

    • Limnetic zone

    • Littoral zone

    • Photic zone

    • Profundal zone

    • Tolerance

    Correct Answer
    A. Ecological succession
    Explanation
    Ecological succession refers to the process by which one community replaces another community due to changes in abiotic and biotic factors. This process occurs over a period of time and involves the colonization of new species and the gradual replacement of existing ones. It is a natural and continuous process that allows ecosystems to adapt and change in response to environmental conditions.

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  • 35. 

    Pioneer species generally pave the way for other species during succession because they help form soil.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Pioneer species are the first to colonize an area that has been disturbed or devoid of life. They play a crucial role in the process of succession by breaking down rocks and other materials, contributing organic matter, and facilitating the formation of soil. This newly formed soil provides a suitable environment for other plant species to establish and thrive. Therefore, pioneer species indeed pave the way for other species during succession by helping to form soil.

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  • 36. 

    The amount of oxygen in a fish tank is a limitinq factor that affects the number of fish that can live in the tank.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The amount of oxygen in a fish tank is a limiting factor because fish require oxygen to survive. If there is not enough oxygen in the tank, it can lead to low oxygen levels in the water, which can be harmful or even fatal for the fish. Therefore, the number of fish that can live in the tank is directly influenced by the amount of oxygen available.

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  • 37. 

    Organism's ability to survive biotic and abiotic factors.

    • Abyssal zone

    • Aphotic zone

    • Benthic zone

    • Climax community

    • Ecological succession

    • Intertidal zone

    • Limiting factor

    • Limnetic zone

    • Littoral zone

    • Photic zone

    • Profundal zone

    • Tolerance

    Correct Answer
    A. Tolerance
    Explanation
    Tolerance refers to an organism's ability to withstand or endure unfavorable conditions, such as extreme temperatures, high salinity, or low oxygen levels. It is a measure of an organism's adaptability and ability to survive in different environments. Organisms with a high tolerance can thrive in a wide range of conditions, while those with a low tolerance are more limited in their ability to survive. Tolerance is an important factor in determining an organism's distribution and ecological success in different habitats.

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  • 38. 

    A role and position a species has in its environment is its

    • Biotic factor

    • Niche

    • Limiting factor

    • Habitat

    Correct Answer
    A. Niche
    Explanation
    A niche refers to the specific role and position that a species occupies within its environment. It includes the interactions and relationships that the species has with other organisms and the resources it uses. The niche of a species determines its behavior, diet, and habitat requirements. It is a fundamental concept in ecology that helps to understand how different species coexist and interact within an ecosystem.

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  • 39. 

    All the interacting populations of different species that live in the same geographic location at the same time.

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Biological community
    Explanation
    A biological community refers to all the interacting populations of different species that live in the same geographic location at the same time. It includes all the plants, animals, and microorganisms that coexist and interact with each other within a specific ecosystem. This term emphasizes the interconnectedness and interdependence of different species in a given area, highlighting the complex relationships and interactions that occur within a community.

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  • 40. 

    The base of a pyramid of energy is the

    • Porducers

    • Autotrophs

    • Neither of these

    • Both of these

    Correct Answer
    A. Both of these
    Explanation
    The base of a pyramid of energy represents the primary source of energy in an ecosystem. Producers, also known as autotrophs, are organisms that can produce their own food through photosynthesis or chemosynthesis. They convert sunlight or inorganic compounds into organic compounds, which serve as energy for other organisms. Therefore, the correct answer is both of these, as the base of a pyramid of energy consists of both producers and autotrophs.

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  • 41. 

    The biome with the greatest biodiversity is the

    • Temperate forest

    • Tropical rain forest

    • Boreal forest

    • Tropical savanna

    Correct Answer
    A. Tropical rain forest
    Explanation
    The tropical rainforest is the biome with the greatest biodiversity because it is characterized by a consistently warm and humid climate, which supports a wide variety of plant and animal species. The high levels of rainfall and year-round warmth create ideal conditions for the growth of diverse plant life, including a wide range of tree species. This abundant vegetation provides food and shelter for countless animal species, resulting in a rich and diverse ecosystem. Additionally, the dense canopy of the rainforest creates multiple layers of habitat, allowing for even greater species diversity.

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  • 42. 

    A plausible hypothesis for the fact that mostly consumers live in marine abyssal zones and benthic zones is that temperature is a limiting factor.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The given statement suggests that the reason why mostly consumers live in marine abyssal zones and benthic zones is that temperature is a limiting factor. However, this statement is false. While temperature can be a limiting factor for some organisms, there are various other factors such as food availability, pressure, and oxygen levels that also play a significant role in determining the distribution of consumers in marine abyssal and benthic zones. Therefore, temperature alone cannot be considered as the sole limiting factor for their presence in these zones.

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  • 43. 

    Atmospheric conditions such as temperature andprecipitation at a specific place and time refers to climate.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because atmospheric conditions such as temperature and precipitation at a specific place and time refer to weather, not climate. Weather describes the short-term conditions in the atmosphere, while climate refers to the long-term patterns and trends of weather in a particular region.

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  • 44. 

    Close mutualistic, parasitic, or commensal association between two or more species that livetogether.

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Symbiosis
    Explanation
    Symbiosis refers to the close mutualistic, parasitic, or commensal association between two or more species that live together. It is a relationship where both species benefit (mutualism), one species benefits while the other is harmed (parasitism), or one species benefits while the other is unaffected (commensalism). This term describes the interdependence and interaction between different species, highlighting the intricate connections and dependencies that exist in nature.

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  • 45. 

    Group of organisms of the same species that occupy the same geographic place at the same time

    • Biogeochemical cycle

    • Biological community

    • Biomass

    • Denitrification

    • Detrivore

    • Food chain

    • Food web

    • Herbivore

    • Nitrogen fixation

    • Omnivore

    • Population

    • Symbiosis

    Correct Answer
    A. Population
    Explanation
    A population refers to a group of organisms of the same species that are present in the same geographic location at the same time. It represents the individuals of a particular species living and interacting with each other within a specific area. This term is used to describe the collective characteristics, behaviors, and dynamics of a specific species within a given ecosystem.

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  • 46. 

    Biotic or abiotic factor that restricts the number, distribution, or reproduction of a population within a community.

    • Abyssal zone

    • Aphotic zone

    • Benthic zone

    • Climax community

    • Ecological succession

    • Intertidal zone

    • Limiting factor

    • Limnetic zone

    • Littoral zone

    • Photic zone

    • Profundal zone

    • Tolerance

    Correct Answer
    A. Limiting factor
    Explanation
    A limiting factor is a biotic or abiotic factor that restricts the number, distribution, or reproduction of a population within a community. It can be any factor that prevents a population from reaching its maximum potential. This could include factors such as availability of food, water, shelter, or the presence of predators or competitors. Limiting factors play a crucial role in regulating population sizes and maintaining balance within ecosystems. Without limiting factors, populations could grow uncontrollably and lead to overpopulation and resource depletion.

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  • 47. 

    Which of the following convert nitrogen in the air into a form plants can use?

    • Fungi & Bacteria

    • Fungi & Lightning

    • Lightning & bacteria

    • None of these

    Correct Answer
    A. Lightning & bacteria
    Explanation
    Lightning and bacteria are the correct answer because lightning converts nitrogen gas in the air into nitrate, which is a form that plants can use. Bacteria also play a crucial role in this process by converting nitrogen gas into a usable form through a process known as nitrogen fixation. Therefore, both lightning and bacteria are responsible for converting nitrogen in the air into a form that plants can utilize.

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  • 48. 

    Stable, mature ecological community with little change in the composition of species.

    • Abyssal zone

    • Aphotic zone

    • Benthic zone

    • Climax community

    • Ecological succession

    • Intertidal zone

    • Limiting factor

    • Limnetic zone

    • Littoral zone

    • Photic zone

    • Profundal zone

    • Tolerance

    Correct Answer
    A. Climax community
    Explanation
    A climax community refers to a stable and mature ecological community where there is minimal change in the composition of species. It is the final stage of ecological succession, where the community has reached a state of equilibrium and is well-adapted to the prevailing environmental conditions. This community represents a balance between the various species and their interactions, resulting in a relatively stable and self-sustaining ecosystem.

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  • 49. 

    Ocean-floor area consisting of sand, silt, and dead organisms.

    • Abyssal zone

    • Aphotic zone

    • Benthic zone

    • Climax community

    • Ecological succession

    • Intertidal zone

    • Limiting factor

    • Limnetic zone

    • Littoral zone

    • Photic zone

    • Profundal zone

    • Tolerance

    Correct Answer
    A. Benthic zone
    Explanation
    The answer "benthic zone" is the correct choice because it refers to the ocean-floor area consisting of sand, silt, and dead organisms. This zone is characterized by its proximity to the ocean floor and the types of sediments and organisms found there. The benthic zone is an important part of the marine ecosystem and supports a diverse range of organisms that rely on the nutrients and resources found in this area.

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Quiz Review Timeline (Updated): Sep 6, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Sep 06, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 16, 2010
    Quiz Created by
    Searls03

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