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Populations

Authored by Elizabeth Guslawski

Science

8th Grade

Populations
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the carrying capacity of the graph?

around 500
more than 500
less than 500
around 600

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Food, water, sunlight, shelter, and space are resources that are  __________.

limiting factors

biotic

unlimited

found in rocks

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two arctic fox are fighting with a polar bear for a sea lion carcass. One fox distracts the bear while the other eats. What type of limiting factor is the polar bear?

Predator-Prey Relationships

Competition

Herbivory Effect

Weather

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following would INCREASE the carrying capacity of an ecosystem?

increase in predators
disease
increase in available food
drought

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Parasites and diseases will ______________ the size of a population, so the are examples of limiting factors.

Increase

Decrease

Stay the same

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between the biotic and abiotic factors?

Biotic factors are living things and abiotic factors are nonliving things.

Biotic factors are nonliving things and abiotic factors are living things.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In many desert ecosystems, days are hot and nights are cold. Water is scarce, so animals seek water wherever possible. The spines of a cactus are actually leaves adapted to conserve water. The cactus plants have also adapted to live in thin, sandy soil. Which of the following is a biotic component of a desert ecosystem?

the thin, sandy soil

the wide temperature range

the scarcity of water

the spiny cactus leaves

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