Biodiversity Adaptations

A(n) ______ in species diversity is associated with a(n) ________ in the functions an ecosystem provides.

• increase; decrease

• decrease; increase

• decrease; unobserved change

• decline; decline

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NGSS.HS-LS2-3

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Two savanna communities both contain 15 plant species. In community A, each of the 15 species is represented by 20 individuals. In community B, 10 of the species are each represented by 12 individuals; the remaining 5 species are each represented by 3 individuals. Which statement best describes the two communities?

• Community A has the same biodiversity as community B

• Both communities have the same species evenness

• Community B has a higher species richness

• Community A has higher species evenness

You are on a town committee formed to determine the borders for a new local nature park. You explain that according to the theory of island biogeography, if the committee wishes to promote species richness it should

• II only

• III only

• I and II

• I, II, and III

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NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What prediction is correct about island biogeography?

• Smaller islands have more resources, and will have more biodiversity

• Larger islands have more space for resources, but will have less biodiversity due to competition

• Islands closer to mainland will be more diverse due to more successful dispersal.

• There is more diversity far away from the mainland because some species fly.

When Charles Darwin visited the Galápagos Islands in the 1800s, he observed many types of organisms that were similar but lived on different islands. The four species of mockingbirds found on the Galápagos Islands are shown below. Each species lives on a different island. These species are very similar, but the Hood mockingbird has a longer beak than the other three species. Which of the following best explains this difference?

• The Hood mockingbird needs a longer beak for defense against predators.

• The Hood mockingbird originated from a different type of bird than the other species.

• The Hood mockingbird’s longer beak is an adaptation to the food available in the bird’s habitat.

• The Hood mockingbird’s beak stretched to reach its food, and the longer beak was passed down to its offspring.

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NGSS.MS-LS1-5

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• A

• B

• C

• D

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NGSS.MS-LS2-1

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The process of change (cambio) by which an organism becomes fitted to its environment to survive.

• mimicry

• camouflage

• adaptation

• biome

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NGSS.MS-LS1-5

What is an adaptation?

• A temporary change in behavior in response to an immediate threat.

• A physical or behavioral trait that helps an organism survive and reproduce in its environment.

• A learned skill that an organism acquires from its parents.

• A rapid evolution in response to environmental changes.

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NGSS.MS-LS4-2

NGSS.MS-LS4-4

Any characteristic that helps an organism survive in its ecosystem is an ____________. 

• Niche

• Habitat

• Adaptation

• Organism

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NGSS.MS-LS4-4

What is an adaptation in biology?

• A book about animals.

• A change in a shopping habit.

• A feature or behavior that helps an organism survive in its environment.

• A type of scientific experiment.

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DOK Level 1: Recall