ES 4.2 READING

What is an ecological niche?

• A species' way of life in its community, including survival and reproduction factors

• The physical location where a species lives

• The number of individuals in a species

• The genetic makeup of a species

Which of the following is an example of a generalist species?

• Raccoon

• Giant panda

• American avocet

• Oystercatcher

Why are specialist species more prone to becoming endangered?

• They have narrow niches and are less adaptable to environmental changes

• They have a broad niche and face more competition

• They can live in many different places

• They eat a variety of foods

Tags

NGSS.MS-LS4-4

What advantage do specialist species have in constant environmental conditions?

• Fewer competitors

• More food sources

• Broader habitat range

• Higher reproduction rate

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NGSS.MS-LS4-4

Which of the following species is known for having a narrow niche?

• Giant panda

• Raccoon

• House sparrow

• White-tailed deer

What is a native species?

• A species that naturally originated in a given ecosystem and is suited to the environmental conditions there.

• A species that is introduced to an ecosystem where it has not occurred previously.

• A species that plays a unique role in the way an ecosystem functions.

• A species that indicates environmental conditions within ecosystems.

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NGSS.MS-LS2-5

Which of the following is an example of a nonnative species that has become invasive?

• African honeybees in Brazil

• Tomatoes in the United States

• Chickens in the United States

• Cattle in the United States

Tags

NGSS.MS-LS2-4

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What role do keystone species play in an ecosystem?

• They play a unique role in the way an ecosystem functions and their absence would dramatically change the ecosystem.

• They are species that are introduced to an ecosystem where they have not occurred previously.

• They are species that indicate environmental conditions within ecosystems.

• They are species that naturally originated in a given ecosystem.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-2

Why were African honeybees imported to Brazil in 1956?

• To breed them with native honeybees to create a honeybee that could better survive Brazil's warm climate.

• To replace Brazil's native honeybee populations.

• To increase the population of African honeybees in Brazil.

• To introduce a new species to Brazil's ecosystem.

Tags

NGSS.MS-LS2-4

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What can happen if a keystone species is lost from an ecosystem?

• Population crashes and extinctions of other species in the community.

• The ecosystem will remain unchanged.

• The ecosystem will become more diverse.

• The ecosystem will become more stable.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5