Ecosystems and Human Impact Flashcard

Front

What is the process called when organisms take in oxygen and release carbon dioxide?

Back

Exchange gases.

Front

What is the first stage of secondary succession after a disturbance?

Back

Disturbance event.

Front

Which type of symbiotic relationship involves one organism benefiting at the expense of another?

Back

Parasitism.

Front

What characteristic of life is demonstrated by a camel's eyelashes keeping dust out of its eyes?

Back

All living things adapt to their environment.

Front

What is a fundamental characteristic that all living things share?

Back

They are composed of one or more cells.

Front

What is the term for the initial species that colonize a disturbed area in ecological succession?

Back

Pioneer species.

Front

What is mutualism in terms of symbiotic relationships?

Back

A relationship where both organisms benefit.

Front

What is the climax community in ecological succession?

Back

The final, stable community that is established after succession.

Front

What is the role of decomposers in an ecosystem?

Back

They break down dead organic matter, recycling nutrients back into the soil.

Front

What is the difference between biotic and abiotic factors in an ecosystem?

Back

Biotic factors are living components, while abiotic factors are non-living components.