Principles of Ecology

What is a group of the same species that lives in one area?

• community

• ecosystem

• keystone species

• population

What is a group of different species that lives in one area called?

• biome

• community

• keystone species

• population

What are all of the organisms and nonliving things in an area called?

• biome

• biotic

• ecosystem

• organism

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How do tolerance ranges affect the distribution of organisms?

• Organisms can only live in optimal conditions.

• Organisms can live in any condition.

• Organisms have a range of conditions in which they can survive.

• Organisms do not have tolerance ranges.

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What does the zone of intolerance indicate in the graph?

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What is the difference between the habitat of an organism and its niche?

• The habitat is where it lives and the niche is its role in the ecosystem.

• The habitat is its role in the ecosystem and the niche is where it lives.

• The habitat is its diet and the niche is its behavior.

• The habitat is its behavior and the niche is its diet.

What does ecology study?

• The interaction between organisms and their environment.

• The structure of atoms.

• The composition of rocks.

• The evolution of species.

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What is a biotic factor?

• A non-living component of the environment.

• A living component of the environment.

• A meteorological phenomenon.

• A type of soil.

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What is an abiotic factor?

• A living component of the environment.

• A non-living component of the environment.

• A type of plant.

• A type of animal.

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Which of the following is a biotic factor?

• The air.

• The water.

• The insects.

• The sunlight.