APES Unit 1 Ecosystems

APES Unit 1 Ecosystems

Assessment

Flashcard

Biology

12th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What are the two major processes involved in the nitrogen cycle?

Back

Fixation and denitrification.

2.

FLASHCARD QUESTION

Front

Why do carbon dioxide levels decrease in summer?

Back

CO2 levels decrease in summer because there is more photosynthesis.

3.

FLASHCARD QUESTION

Front

What is a possible positive consequence of an increase in CO2 in the atmosphere?

Back

Plants may grow faster and produce more sugars.

4.

FLASHCARD QUESTION

Front

What is an example of an abiotic factor affecting a biotic component?

Back

Phosphorous content in soil affecting plant growth.

5.

FLASHCARD QUESTION

Front

If gross primary productivity is 5 gC/m²yr and producers need 1.5 gC/m²yr for respiration, what is the net primary productivity?

Back

3.5 gC/m²yr.

6.

FLASHCARD QUESTION

Front

Define gross primary productivity (GPP).

Back

The total amount of carbon fixed by photosynthesis in a given area and time.

7.

FLASHCARD QUESTION

Front

Define net primary productivity (NPP).

Back

The amount of carbon that remains after plants have met their own respiration needs; NPP = GPP - respiration.

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