Ecology Test Review

Front

What is commensalism?

Back

A relationship between two organisms in which one organism benefits and the other is unharmed.

Front

What is a food chain?

Back

A linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What is a food web?

Back

A complex network of feeding relationships among various organisms in an ecosystem.

Front

What do the arrows in a food web represent?

Back

The direction of energy flow, indicating who gets energy.

Front

What is mutualism?

Back

A relationship between two organisms in which both organisms benefit.

Front

What is parasitism?

Back

A relationship between two organisms in which one organism benefits at the expense of the other.

Front

What is competition in ecology?

Back

A relationship where two or more organisms vie for the same resources, such as food, water, or space.

Front

How does predator-prey relationship affect population dynamics?

Back

Predator population lags behind prey population because an increase in predators leads to a decrease in prey.

Front

What are abiotic factors?

Back

Non-living chemical and physical parts of the environment that affect living organisms.

Front

What is an ecosystem?

Back

A community of living organisms interacting with their physical environment.