Population Factors

True or False: A drought can reduce the size of a population.

• True

• False

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of these is NOT a limiting factor?

• overcrowding

• lack of food

• just enough food for all organism

• disease

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NGSS.MS-LS2-1

What happens if a group of animals goes over the carrying capacity?

• The population will overpopulate and eventually run out of resources.

• The population will continue to go up because there are more animals to reproduce.

• There will be a new carrying capacity.

• There would be no affect on food and water.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Diseases can not change the size of a population.

• True

• False

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NGSS.MS-LS2-4

True or False: A limiting factor is an environmental factor that increases the growth of a population in an ecosystem.

• True

• False

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

If a disease destroys barley plants that are food for birds in an ecosystem, what would happen to the bird population?

• The bird population would stay the same

• The bird population would increase

• The bird population would decrease

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is it called when a group of the same organisms living together in the same place at the same time?

• An organism

• A population

• A community

• A biome

All of the members of one species that live in one area.

• Biome

• Ecosystem

• Community

• Population

Which of the following is a biotic factor that can affect population size?

• Predation

• Temperature

• Water availability

• Soil pH

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

What term describes the maximum population size that an environment can sustain indefinitely?

• Carrying capacity

• Biotic potential

• Population density

• Limiting factor