Natural Selection

The change over time in populations of related species.

• biological evolution
• transition
• variation
• adaptation

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These cause variations.

• mutations
• adaptations
• a desire to change
• injuries

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An inherited trait that increases an organism's chance of surviving and reproducing.

• variation
• adaptation
• vestigial structure
• mutation

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The discovery of DNA and genes proved that

• Darwin was wrong
• mutations create variations and come from genes
• we are all the same species
• bats and butterflies have a very close common ancestor

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When an organism of a species is born with a variation in a trait that gives it an advantage in its environment, we call that trait an adaptation.

• true
• false

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When an organism of a species has an adaptation, it will compete for resources better, survive longer and pass that adaptation on to it's offspring. This process is called

• evolution by natural selection
• artificial selection
• inbreeding
• outbreeding

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When an organism has a trait that allows it to blend in with its environment, we call that ____.

• mimicry
• camouflage
• lucky
• sonic hedgehog gene

Adaptations can be:

• camouflage

• ability to survive cold weather

• hunting skills

• all of the above

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A yellow morph and green morph of an insect lives in the rainforest canopy. You would expect:

• the green population to increase and the yellow to decrease

• both populations should stay the same

• both populations will increase

• the green population to decrease and the yellow to increaseThis is a wrong answer

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How do you "win" at natural selection?

• survive

• go extinct

• survive & reproduce

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