BrainPop Natural Selection Quiz

The Galapagos Islands are where Charles Darwin:

• a. Wrote On the Origin of Species

• b. Studied unusual animals

• c. Was exiled after his theories proved unpopular

• d. Was born and raised

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The beaks of finches found on various Galapagos Islands differed based on:

• a. The size of their island

• b. The length of their wings

• c. The available food supply

• d. The predators that hunted them

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What is a common ancestor?

• a. An animal that has a lot of offspring.

• b. An animal from which two or more different species evolved.

• c. An animal that is related to many other species.

• d. An animal that's good at escaping from predators.

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What is least likely to be an example of a variation within a species?

• a. Birth weight

• b. Hair color

• c. Number of offspring

• d. Number of limbs

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Which of the following is an example of an environmental pressure?

• a. The air pressure in the atmosphere

• b. Breeding between two members of the same species

• c. A lake that's gradually running out of water

• d. A fight between two members of the same species

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In the phrase "survival of the fittest," the term "fittest" refers to:

• a. The best-adapted organisms

• b. The biggest organisms

• c. The smartest organisms

• d. The fastest organisms

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Which variation would be most likely to benefit any organism, regardless of environment?

• a. The ability to produce energy more efficiently.

• b. The ability to swim deeper.

• c. Markings that help it blend into its background.

• d. Bigger claws and teeth

When nature "selects" a variation, that means that the trait:

• a. Gets passed along from generation to generation

• b. Causes the population to shrink

• c. Has brought about a new species

• d. Helps prey escape predators

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Dogs are an example of:

• a. A common ancestor

• b. Selective breeding

• c. Extinction rates decreasing

• d. Extinction rates rising

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On Darwin's tree of life, organisms at the base of a branch:

• a. Go extinct from environmental pressures.

• b. Evolve into the closest species on the tree's trunk.

• c. Give rise to species farther down the branch.

• d. Are less fit than species in the middle of a branch.

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