Natural Selection Vocabulary

A group of organisms that are similar and can reproduce among themselves is called a what?

• group

• species

• adaptation

• mammal

Who produced the theory of natural selection?

• Charles Darwin

• Gregor Mendel

• Isaac Newton

• Albert Einstein

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Gradual changes in a species over a long period of time is referred to as what?

• evolution

• species

• variation

• natural selection

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What is it called when populations of organisms are separated physically by geographic barriers such as water or mountains?

• extinction

• endangerment

• geographic isolation

• natural selection

Any trait that makes an organism different from the rest of its species is called what?

• variation

• mutation

• adaptation

• camouflage

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Any variation that makes an organism better suited to its environment is called?

• species

• extinction

• adaptation

• vestigial structures

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______________ is a change in species in a smaller area, whereas ________________ is a change across the entire species.

• differentiation/ speciation

• speciation/ differentiation

• macroevolution/ microevolution

• microevolution/ macroevolution

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a related organism from a previous generation

• species

• mutation

• nymph

• ancestor

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What is the definition of evolution?

• A group of similar organisms that can mate with each other and produce offspring that can also mate and reproduce.

• The process by which modern organisms have descended from ancient organisms.

• An inherited behavior or physical characteristic that helps an organism survive and reproduce.

• The struggle among living things to get the necessary amount of food, water, and shelter.

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An adaptive trait depends on the (fill in the blank)

• environment

• species

• natural selection

• predation

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