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Ecology 8th Grade Science Review

Authored by Angela Friberg

Science

8th Grade

Used 8+ times

Ecology 8th Grade Science Review
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31 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these is an abiotic element of a desert ecosystem?

sand

cactus

lizard

scorpion

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement describes a harmful effect of clearing rainforests for farmland?

makes more land available for local farmers

removes valuable habitat for local species

increases local groundwater levels

provides income for local residents

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A food web for a grassland ecosystem is shown.

Organisms living in an ecosystem often have to compete for food. In the food web, which two animals are competing for the same food?

the mouse and the toad

the hawk and the rabbit

the praying mantis and the rabbit

the garter snake and the grasshopper

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A food web showing some of the connections between organisms is shown.

If a disease decreased the population of cottontail rabbits for a short period of time, which animal populations would experience an increase in competition with each other for food?

frogs and insects

hawks and coyotes

frogs and white-tailed deer

white-tailed deer and coyotes

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In Florida, black bears are found in only a few regions. Roads and highways cross all of these regions. If new road construction continues through the regions occupied by bears, how will black bear populations MOST likely be affected?

populations will increase as the bears spread out to other areas.

populations will increase because other herbivores will move out.

populations will decrease due to pollution caused by cars and trucks.

populations will decrease as they have less area to find food and shelter.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can a shipwreck that is left in place on the ocean floor benefit marine life?

the fossil fuel in its engines can become food for algae and fish

its interior can release oxygen from the surface to the deep ocean

it can provide a hard surface where organisms can attach and live.

plastics in the ship can break down and be released to the open ocean

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An event that occurs over a long period of time that leads to adaptation of an organism

Adaptation

Extinction

Long-term environmental change

Short-term environmental change

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