Chapter 5 Pearson Environmental Science

Chapter 5 Pearson Environmental Science

Assessment

Flashcard

Biology

9th - 12th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is tolerance in ecology?

Back

Tolerance is the ability of an organism to survive and reproduce under changing environmental conditions.

2.

FLASHCARD QUESTION

Front

What does an organism's niche describe?

Back

An organism's niche describes its use of resources and its functional role in a community.

3.

FLASHCARD QUESTION

Front

What is the competitive exclusion principle?

Back

The competitive exclusion principle states that if one species is a very effective competitor, it may exclude another species from resource use entirely.

4.

FLASHCARD QUESTION

Front

What do primary producers do?

Back

Primary producers use sunlight to make their own energy through photosynthesis.

5.

FLASHCARD QUESTION

Front

What is secondary succession?

Back

Secondary succession begins when a disturbance such as fire, logging, or farming dramatically alters an existing community but does not destroy all living things or all organic matter in the soil.

6.

FLASHCARD QUESTION

Front

What is the difference between primary and secondary succession?

Back

Primary succession occurs in lifeless areas where soil has not yet formed, while secondary succession occurs in areas where a disturbance has destroyed an existing community but left the soil intact.

7.

FLASHCARD QUESTION

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.

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