7.11a

Natural selection can be best described as:

• The process by which species adapt to human needs

• A method of breeding for specific traits

• The process by which individuals with favorable traits survive and reproduce

• A random process without any direction or goal

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Selective breeding differs from natural selection in that it:

• Is a completely random process

• Is driven by environmental changes

• Involves human intervention to achieve desired traits

• Only occurs in wild populations

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Natural selection in Galapagos finches is an example of evolution in response to:

• Human preferences

• Food availability and type

• Predatory threats

• Mating rituals

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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 .

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

• nature

• a human

• traits

• evolution

What is the purpose of a dichotomous key?

• to find a common ancestor

• to show the evolution of organisms

• to see what organisms eat

• to identify organisms

Using this dichotomous key, identity the name of the circled fish.

• band-tail puffer

• spotted goat fish

• peacock flounder

• trumpet fish

Identify the fish

• Sebastes serriceps

• Sebastes nebulosus

• Naucrates ductor

• Seriola lalandi

What is the advantage of having different shaped beaks?

• To look different from other species.

• To be able to eat the food readily available in the environment.

• To protect itself against predators.

• To protect itself against prey.

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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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