Unit 9: Ecology

Front

What is the term for each step in the transfer of energy and matter within a biological community?

Back

Trophic level

Front

What is the source of energy for most food chains in the world?

Back

Sun

Front

Primary succession occurs in an area that has:

Back

No soil

Front

What is a collection of organisms that make up a community as well as all of the nonliving aspects of the environment?

Back

Ecosystem

Front

What are the nonliving aspects of an ecosystem called?

Back

Abiotic factors

Front

What is the term for the living components of an ecosystem?

Back

Biotic factors

Front

What is the process by which plants convert sunlight into energy?

Back

Photosynthesis

Front

What is the role of decomposers in an ecosystem?

Back

Break down dead organic matter and recycle nutrients back into the soil.

Front

What is a food web?

Back

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

Front

What is the difference between a habitat and a niche?

Back

A habitat is the environment where an organism lives, while a niche is the role or function of that organism within its habitat.