Unit 2 Exam - Ecology

Front

What is parasitism?

Back

A type of symbiotic relationship where one organism benefits at the expense of another, harming it in the process.

Front

What is the direction of energy flow in a food chain?

Back

Energy flows from producers to consumers in one direction only.

Front

How much energy is typically transferred from one trophic level to the next in an energy pyramid?

Back

About 10% of the energy is transferred from one trophic level to the next.

Front

What defines an omnivore?

Back

An organism that has the ability to digest both plant and meat sources.

Front

What is a trophic level?

Back

A position in a food chain or energy pyramid that indicates the organism's role in the flow of energy.

Front

What is mutualism?

Back

A type of symbiotic relationship where both organisms benefit from the interaction.

Front

What is commensalism?

Back

A type of symbiotic relationship where one organism benefits and the other is neither helped nor harmed.

Front

What are producers in an ecosystem?

Back

Organisms that produce their own food through photosynthesis, such as plants.

Front

What are consumers in an ecosystem?

Back

Organisms that cannot produce their own food and must eat other organisms for energy.

Front

What is a food web?

Back

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