Bio 2 Warm-up Quiz #4

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| By Christopher Mack

Christopher Mack

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1/10 Questions

What will most likely happen if the human population continues to grow at current rates?
- There will be fewer resources available in the future
- There will be an increase in nitrogen levels
- There will be a decrease in water pollution
- There will be an increase in the number of hurricanes

About This Quiz

Bio 2 Warm-up Quiz #4 explores key environmental concepts, such as acid rain, ecological succession, and resource scarcity. It tests understanding of ecosystems, species interactions, and human impact on the environment, essential for students in biology and environmental studies.

2.

The picture at the right is an example of a(n) ___.
- Bonding model
- Super model
- Atomic model
- Molecular model
Correct Answer

A. Atomic model

Explanation

The given picture is an example of an atomic model. Atomic models are representations of atoms that help scientists understand their structure and behavior. They show the arrangement of protons, neutrons, and electrons within an atom. These models are used to visualize and explain various atomic phenomena and properties.

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3.

A bond that is formed when two atoms share electrons is called a ___.
- Covalent bond
- Ionic bond
- Hydrogen bond
- James bond
Correct Answer

A. Covalent bond

Explanation

A covalent bond is formed when two atoms share electrons. This type of bond occurs between nonmetal atoms and is characterized by the equal sharing of electrons between the atoms involved. Covalent bonds are strong and stable, and they play a crucial role in the formation of molecules and compounds.

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4.

Which phrase best describes biodiversity?
- The number of individuals in an ecosystem
- The amount of biomass in an ecosystem
- The amount of available energy in an ecosystem
- The number of species in an ecosystem
Correct Answer

A. The number of species in an ecosystem

Explanation

Biodiversity refers to the variety of different species in an ecosystem. It is a measure of the richness and abundance of different organisms living in a particular area. The more diverse an ecosystem is, the higher its biodiversity. This includes both the number of species present and the genetic variation within those species. Biodiversity is important for the stability and functioning of ecosystems, as different species play different roles and contribute to the overall health and resilience of the ecosystem.

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5.

Virginia’s Great Dismal Swamp is largely a red maple forest. There used to be more bald cypress and white cedar trees in the area, but tree cutting and the prevention of natural forest fires have changed the balance of tree species. The balance has shifted because these actions have —
- Preserved the amount of soil in the swamp
- Decreased the amount of sunlight needed by cypress
- Increased the rate of cellular respiration in cedar
- Altered the pattern of succession in the swamp
Correct Answer

A. Altered the pattern of succession in the swamp

Explanation

The balance of tree species in Virginia's Great Dismal Swamp has been altered due to tree cutting and the prevention of natural forest fires. These actions have disrupted the natural process of succession in the swamp, causing a shift in the dominant tree species.

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6.

In a scientific experiment, how many independent variables should be tested at the same time?
- None
- One
- Two
- Three or more
Correct Answer

A. One

Explanation

In a scientific experiment, it is recommended to test only one independent variable at a time. This is because testing multiple independent variables simultaneously can make it difficult to determine which variable is causing the observed changes in the dependent variable. By testing only one independent variable, scientists can isolate its effects and gain a clearer understanding of its impact on the experiment's outcome.

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7.

This food chain can be found in the coastal waters of Virginia. The population of which organisms in the food chain would be the first to decline if commercial fishing over-harvested shrimp?
- Algae
- Damsel fish
- Barracuda
- Zooplankton
Correct Answer

A. Damsel fish

Explanation

If commercial fishing over-harvested shrimp, the population of zooplankton would be the first to decline in this food chain. Zooplankton are a primary food source for shrimp, so if shrimp are over-harvested, there would be less food available for zooplankton. As a result, the population of zooplankton would decrease, which would then impact the population of damsel fish, as they rely on zooplankton as their main food source. The decline in damsel fish population would then have a cascading effect on the rest of the food chain, potentially impacting the populations of algae and barracuda as well.

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8.

The construction of a new coal-burning power plant would have the greatest impact on which environmental issue?
- Depletion of the ozone layer
- Release of radiation
- Production of acid rain
- Increase in deforestation
Correct Answer

A. Production of acid rain

Explanation

The construction of a new coal-burning power plant would have the greatest impact on the production of acid rain. Coal combustion releases sulfur dioxide and nitrogen oxides, which react with water vapor in the atmosphere to form sulfuric acid and nitric acid. These acids then fall to the ground as acid rain, causing harm to ecosystems, damaging crops, and corroding buildings and infrastructure. Therefore, the construction of a new coal-burning power plant would contribute significantly to the production of acid rain.

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9.

Which environmental factor would cause the greatest decrease in the number of species of plants and animals living in some of the lakes in the United States?
- Increase in dissolved oxygen levels
- Global warming
- Ozone destruction
- Acid rain
Correct Answer

A. Acid rain

Explanation

Acid rain is the correct answer because it is a significant environmental factor that can have a detrimental impact on the number of species of plants and animals living in lakes. Acid rain is caused by the release of sulfur dioxide and nitrogen oxide into the atmosphere, which then reacts with water vapor to form sulfuric acid and nitric acid. When acid rain falls into lakes, it lowers the pH levels of the water, making it more acidic. This change in pH can harm aquatic organisms, such as fish and amphibians, and also disrupt the balance of the ecosystem by affecting the availability of food and resources for other species.

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10.

Chemosynthesis is the process in which organisms
- Form carbohydrates using chemicals
- Get energy by eating other organisms
- Make chemicals that absorb sunlight
- Use energy from the sun to form carbohydrates
Correct Answer

A. Form carbohydrates using chemicals

Explanation

Chemosynthesis is the process in which organisms form carbohydrates using chemicals. This means that instead of relying on sunlight like photosynthesis, these organisms are able to produce their own energy by converting inorganic compounds into organic compounds. They use chemicals in their environment to create carbohydrates, which are essential for their growth and survival. This process is commonly found in deep-sea ecosystems where sunlight is not available, and it allows organisms to thrive in these extreme environments.

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Current Version
Mar 21, 2023

Quiz Edited by
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Sep 19, 2013

Quiz Created by
Christopher Mack

Bio 2 Warm-up Quiz #4

What will most likely happen if the human population continues to grow at current rates?

Quiz Preview

The picture at the right is an example of a(n) ___.

A bond that is formed when two atoms share electrons is called a ___.

Which phrase best describes biodiversity?

Virginia’s Great Dismal Swamp is largely a red maple forest. There used to be more bald cypress and white cedar trees in the area, but tree cutting and the prevention of natural forest fires have changed the balance of tree species. The balance has shifted because these actions have —

In a scientific experiment, how many independent variables should be tested at the same time?

This food chain can be found in the coastal waters of Virginia. The population of which organisms in the food chain would be the first to decline if commercial fishing over-harvested shrimp?

The construction of a new coal-burning power plant would have the greatest impact on which environmental issue?

Which environmental factor would cause the greatest decrease in the number of species of plants and animals living in some of the lakes in the United States?

Chemosynthesis is the process in which organisms