Ultimate Quiz On EcoSystems

An ecosystem is a community of living organisms (biotic factors) interacting with their non-living environment (abiotic factors) in a particular area. It includes all the plants, animals, microorganisms, and physical components such as air, water, and soil. Therefore, the correct answer is "ecosystem" or "ecosystems" as they encompass the entirety of the biotic and abiotic factors in an area.

Decomposers play a vital role in the ecosystem by breaking down organic matter such as dead plants and animals, as well as waste materials. Through the process of decomposition, they release nutrients back into the environment, making them available for other organisms to use. This breakdown of organic matter also releases energy that decomposers utilize to carry out their life processes. Therefore, it is true that decomposers obtain energy by breaking down wastes and the remains of dead organisms.

plants are producers

Producers, like the grass in this system, use sunlight to produce energy-rich compounds.

Feedback
A Remember that producers, consumers, and decomposers rely on different sources of energy.
B Think about how producers, consumers, and decomposers get energy.
C Correct!
D Remember what you have learned about how energy moves through ecosystems.

Water, sunlight, and soil are abiotic factors in an ecosystem. Abiotic factors refer to the non-living components of an ecosystem that directly or indirectly affect the organisms living in it. Water, sunlight, and soil are essential for the survival and growth of plants and other organisms in an ecosystem. They provide the necessary resources and conditions for life, such as hydration, energy through photosynthesis, and nutrients for plant growth. Therefore, these factors are crucial for maintaining the balance and functioning of an ecosystem.

biotic

Plants are able to convert the sun's energy into glucose and oxygen through the process of photosynthesis. They are considered producers because they produce their own food using the energy from the sun. Autotrophs refer to organisms that can produce their own food, which includes plants. Therefore, all three options: producers, autotrophs, and PLANTS, are correct answers as they all describe the ability of plants to convert solar energy into glucose and oxygen.

Second-level consumers may be either carnivores or omnivores because they are organisms that primarily feed on other consumers, which can include both animals and plants. Carnivores exclusively consume other animals, while omnivores have a more varied diet and consume both animals and plants. Therefore, it is true that second-level consumers can be either carnivores or omnivores.

If pesticides drastically reduced the number of caterpillars in this food chain, the strangler fig population would increase because there would be less competition for resources. However, the lizard population would decrease because they rely on caterpillars as a food source.

The major producer in this ecosystem is the grass. This organism uses sunlight to create energy-rich compounds. Energy is transferred from producers to consumers when they eat the grass.


A Think about how producers, consumers, and decomposers get energy.

B Remember what you have learned about how energy moves through ecosystems.

C Remember that producers, consumers, and decomposers rely on different sources of energy.

D Correct!

The Milky Way is an example of a spiral galaxy. Spiral galaxies are characterized by a central bulge surrounded by arms that spiral outwards. The Milky Way has a central bulge and spiral arms, making it a perfect example of a spiral galaxy.

You can use the atomic number/number of protons to identify a specific element.

The organisms that belong to the same food chain are wheat, mouse, snake, and owl. In this food chain, the wheat is the producer, the mouse is the primary consumer that eats the wheat, the snake is the secondary consumer that eats the mouse, and the owl is the tertiary consumer that eats the snake. Each organism in the chain depends on the one before it for energy and nutrients, forming a linear relationship.

Organisms in an ecosystem are connected through feeding relationships. Energy is transferred through these relationships. Mice obtain energy by eating grass, and in turn serve as an energy source for owls. When mice die, the nutrients that make up their bodies provide an energy source for decomposers.

A Remember that producers, consumers, and decomposers rely on different sources of energy.

B Correct!

C Remember what you have learned about how energy moves through ecosystems.

D Think about how producers, consumers, and decomposers get energy.

The phase of the moon indicated by the 1 in the diagram is a waxing crescent. This phase occurs when less than half of the moon is visible and the illuminated portion is increasing. It is called "waxing" because the illuminated portion is getting larger, and "crescent" because it appears as a curved shape resembling a crescent.

The cake has different properties than its ingredients and cannot change back to those ingredients.

In both parasitism and predation, one organism benefits while the other is harmed. In parasitism, the parasite benefits by feeding off the host organism, while the host is harmed. In predation, the predator benefits by consuming the prey, while the prey is harmed. This characteristic of one organism benefiting and the other being harmed is what makes both parasitism and predation similar.

The ability to read is not an inherited trait because it is a learned behavior that is acquired through education and practice. While certain genetic factors may influence a person's potential for learning and literacy skills, the actual ability to read is not determined by genetics alone.

The student should place the moon on position 4 on the diagram to accurately show its position relative to the Earth and the sun during a full moon. This is because during a full moon, the moon is on the opposite side of the Earth from the sun, with the Earth in between. Position 4 represents this arrangement, with the sun on one side, the Earth in the middle, and the moon on the other side.

Sodium, element number 11, is also a member of the alkali metals and has properties similar to those of lithium.

Sea birds that migrate were affected the least by the catastrophic event because they were not present in the area at the time of the spill. Since they were not in the vicinity, they were not directly exposed to the oil and did not suffer the immediate consequences like the other species. However, it is important to note that the long-term effects on their habitat and food sources could still have indirect impacts on their population.

The energy pyramid shows the flow of energy in an ecosystem. The higher up an organism is on the pyramid, the fewer energy it receives. In this energy pyramid, the coyote is at the top, indicating that it is a tertiary consumer and depends on the rabbits for energy. The rabbits are one level below the coyote, making them secondary consumers. The grass, being at the bottom of the pyramid, is a producer and is not dependent on any organism for energy. Therefore, the statement "Only the coyote is dependent on the rabbits for energy" best describes the relationship shown by this energy pyramid.

Point c best represents the relationship between Earth and the Sun when it is summer in South America. This is because during summer in South America, the Southern Hemisphere is tilted towards the Sun. Point c shows the Earth tilted in such a way that the Southern Hemisphere is receiving more direct sunlight, indicating the summer season in South America.

When a non-native plant is introduced into a diverse, mature ecosystem in equilibrium without any natural enemies, it can thrive and outcompete the native species for resources such as space, sunlight, and nutrients. This leads to a decrease in the number of native species as the non-native plant dominates and takes over the ecosystem. The non-native plant may have advantages over the native species, such as faster growth rates or lack of natural predators, allowing it to outcompete and displace the native species. Consequently, the overall diversity and abundance of native species in the community will decrease.