Natural Selection

the process by which organisms that are best adapted to their environment are most likely to survive and reproduce.

• adaptation

• natural selection

• niche

• competition

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an inherited behavior or physical characteristic that helps an organism survive and reproduce in its environment.

• adaptation

• natural selection

• niche

• competition

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

• The best-adapted organisms

• The biggest organisms

• The smartest organisms

• The fastest organisms

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

• Gets passed along from generation to generation

• Causes the population to shrink

• Has brought about a new species

• Helps prey escape predators

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Dogs are an example of:

• A common ancestor

• Selective breeding

• The natural pace of evolution

• Extinction rates rising

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What is natural selection?

• When reproduction occurs and mutations happen.

• When a offspring has the traits from its parents.

• When an organism is able to camoflauge in its environment.

• the process whereby organisms that are better adapted to their environment tend to survive and reproduce more offspring.

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What is a trait?

• a color

• the quality or characteristic of an organism

• the DNA of an organism

• when mutatuons cause extra limbs.

What is an adaptive trait?

• A genetic trait that helps an organism to maximize its survival and reproduction ability

• A trait that makes an animal strong

• a trait that makes an animal weak

• a poisonus plant

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Can mutations be passed down to offspring?

• Yes

• No

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Differences in traits are called:

• natural selection

• genetic variations

• artificial selection

• adaptations

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