AP Biology Community Ecology

What level of ecological organization would include all squirrels that live in the same area?

• biome

• community

• ecosystem

• population

It is a biological community of interacting organisms and their physical environment.

• Ecosystem

• Biotic System

• Abiotic System

• None of the choices

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Look at the diagram of the food web. The arrows means “eaten by.”

What will happen if the number of snakes goes down?

• The owl will eat the grass

• The number of frogs will go down

• The hawk and owl will have less food

• The number of mice and grasshoppers will go up.

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The study of the interaction of living and nonliving things in the environment.

• biology

• ecology

• zoology

• psychology

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A living relationship between two species in which one organism is harmed is called...

• mutualism

• commensalism

• parasitism

• niche

symbiotic relationship in which both organisms benefit

• competition

• Mutualism

• nitrogen fixation

• energy pyramid

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The non living parts of an ecosystem

• abiotic factors

• biotic factors

• oxygen

• soil

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An abiotic part of an ecosystem; required by plants to perform photosynthesis.

• water

• soil

• sunlight

• oxygen

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What is the term used to describe all living things in an ecosystem?

• Biotic Factors

• Abiotic Factors

• Environmental Factors

• Population

What is the term used to describe all non-living things in an ecosystem?

• Biotic Factors

• Abiotic Factors

• Environmental Factors

• Population