Ecology and Biogeochemical Cycles Assessment

Ecology and Biogeochemical Cycles Assessment

9th Grade

20 Qs

quiz-placeholder

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Ecology and Biogeochemical Cycles Assessment

Ecology and Biogeochemical Cycles Assessment

Assessment

Quiz

others

9th Grade

Medium

Created by

Jessica Helm

Used 9+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which biogeochemical cycle represents the movement of carbon through Earth's systems?

Nitrogen cycle

Carbon cycle

Phosphorus cycle

Water cycle

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary source of energy in most ecosystems?

Decomposers

The Sun

Consumers

Minerals

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a food chain, what percentage of energy is typically transferred from one trophic level to the next?

90%

50%

10%

1%

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is carrying capacity?

The maximum population size an environment can support

The minimum number of organisms needed for survival

The rate at which organisms reproduce

The amount of food available in an ecosystem

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a density-dependent limiting factor?

Temperature

Natural disasters

Competition for resources

Drought

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of succession occurs on bare rock where no soil exists?

Secondary succession

Primary succession

Tertiary succession

Climax succession

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which organisms convert nitrogen gas into a usable form for plants?

Decomposers

Nitrogen-fixing bacteria

Consumers

Producers

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