Natural Selection Slides Quiz

What does the term "Individual" refer to in biology?

• A group of species living together

• A single member of a species

• A community of different species

• The habitat of a species

What is a "Population" in biological terms?

• A single organism in an ecosystem

• A group of different species living together

• Individuals of the same species that live in different areas

• Individuals of the same species that live in the same area

What did Charles Darwin notice about populations of organisms during his travels around the world?

• They often suffered from diseases.

• They seemed to fit their environment.

• They were decreasing in number.

• They had no variation within species.

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What question did Charles Darwin wonder about regarding organisms?

• How they could live in extreme conditions.

• Why they migrated from one place to another.

• How they came to be so well suited to their surroundings.

• Why they had different colors and shapes.

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According to Darwin's observation, why do jaguars have long, sharp teeth?

• To blend in with their environment

• To help it tear through the flesh of its prey

• To attract mates

• To help it survive in cold climates

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What is the purpose of the polar bear's thick, white fur, as observed by Darwin?

• To help it catch its prey

• To help it swim faster

• To help it blend in and survive in the cold of the North Pole

• To help it drink nectar from flowers

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How does the hummingbird's long, narrow beak and tongue benefit it, according to Darwin's observation?

• It helps the bird to dig for insects

• It allows the bird to drink nectar from long tubular flowers

• It helps the bird to attract mates

• It allows the bird to blend into its environment

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What did Darwin observe about the species on the Galapagos Islands?

• They had identical traits on each island

• They had slightly different traits from island to island

• They were all imported from other countries

• They were all the same species with no differences

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How did the populations of species on the Galapagos Islands seem in relation to their environment?

• Poorly-suited

• Well-suited

• Unable to survive

• Not adapted at all

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Why did one species of tortoise have short necks?

• They lived on an island with many tall trees.

• They needed to swim between islands.

• They lived on an island where plants grew low to the ground.

• They preferred to eat insects rather than plants.

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