Biological Evolution

Which competition is direct and interspecific?

• peacocks attracting a mate

• a hyena and cheetah fighting over a carcass

• a fern and maple tree seedling competing for sunlight

Suppose the mosquito population in an area increases. Which organism may also experience a population increase?

• bats

• squirrels

• deer

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A mutation is any

• change in the DNA sequence that leads to a disadvantageous outcome.

• change in the DNA sequence that leads to an advantageous outcome.

• change in the DNA sequence.

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Which situation is an example of altruistic behavior?

• A child steals an apple.

• A child eats an apple.

• A child shares an apple.

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If an organism is well adapted to its environment and a rapid major change occurs to the environment, what is most likely going to happen to the organism?

• The organism will not be able to adapt, and the species will go extinct.

• The organism will adapt, and the species will evolve into a new species.

•  The organism does not have adaptations, so they are forced to move and find a suitable environment elsewhere. 

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In honey bee colonies, the queen produces sterile offspring that protect the nest and forage for food. Assess how this altruistic behavior may have arisen through natural selection. Explain your answer in one to two sentences.

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