The Making of the Fittest: Natural Selection

Change over time

• Natural Selection

• Evolution

• Selective Breeding

• Homeostasis

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Natural selection

• organisms better adapted to their environment tend to survive and produce more offspring

• process used by humans to develop new organisms with desirable characteristics

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Selective breeding

• organisms better adapted to their environment tend to survive and produce more offspring

• process used by humans to develop new organisms with desirable characteristics

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"Survival of the fittest" describes which theory

• Natural selection

• Selective breeding

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Which is an example of selective breeding?

• A giraffe's long neck.

• Clipping a horse's tail so it's not too long.

• Training a horse to run faster.

• Cross breeding a labrador retriever with a poodle .

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The differences among a species, like different bird beaks, are called

• genes.\

• variations

• traits

• alleles

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Which organisms are most likely to survive?

• The strongest

• The best adapted

• The fittest

• The most athletic

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The long and sharp beak of a woodpecker is an example of

• natural selection

• selective breeding

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Natural selection is where ___________ decides which traits should be passed on.

• nature

• a human

• traits

• evolution

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Selective breeding is where _____________ decides which traits should be passed on.

• nature

• a human

• traits

• evolution

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