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Bio 2.1.1 #1

Authored by Renee Loy

Biology

9th - 10th Grade

Used 52+ times

Bio 2.1.1 #1
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5 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which would have the greatest impact on energy flow within an ecosystem?

decreasing available sunlight

decreasing the number of carnivores

increasing the amount of minerals

increasing the number of herbivores

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

In an aquatic food web, which organism would get its energy directly from the Sun?

algae

krill

worms

zooplankton

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Several gases in the atmosphere help to trap and hold some of the heat from the Sun, helping to maintain the Earth's temperature. This is the natural phenomenon called the greenhouse effect. Which gas varies in concentration based on plant coverage and ocean coverage?

carbon dioxide

methane

nitrous oxide

water

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

On Earth, the plants and the oceans store carbon dioxide from the atmosphere. What results when a factor, such as the clear-cutting of large stands of forest, disrupts this process?

global warming

overpopulation

ozone depletion

soil erosion

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What organisms are primarily responsible for decomposing waste materials in an ecosystem?

algae

autotrophs

bacteria

plants

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