Unit 6 Ecosystems and Population changes Review

Front

What is high biodiversity?

Back

Having a lot of variety of different organisms.

Front

What are the species called that appear first during primary succession?

Back

Pioneer Species

Front

What are biotic factors?

Back

Living components of an ecosystem.

Front

What are abiotic factors?

Back

Nonliving components of an ecosystem.

Front

What type of organism typically grows on bare rock?

Back

Moss and lichen.

Front

Define an ecosystem.

Back

A community of living organisms and their interactions with their environment.

Front

What is primary succession?

Back

The process of ecological change that occurs in an area where no soil exists.

Front

What is secondary succession?

Back

The process of ecological change that occurs in an area where soil exists but has been disturbed.

Front

What role do decomposers play in an ecosystem?

Back

They break down dead organisms and recycle nutrients back into the soil.

Front

What is a food chain?

Back

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