Chapter 7

What part of the process of evolution did Darwin NOT understant?

• slowness of the process

• role of genetics

• importance of competition

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Darwin did not have this evidence of natural selection available?

• Differences in genes create variation

• Organisms inherit traits

• humans can breed organisms for specific traits

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When the process by which populations slowly change overtime?

• evolution

• speciation

• adaptation

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Which one of Darwin's ideas about evolution is not a source?

• selective breeding by farmers and animal breeders

• characteristics of Galapagos animals

• scientists knowledge of genetic changes

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Which on of these is NOT an example of natural selection?

• people breeding horses to run faster

• insect populations developing resistance to pesticides

• bacteria populations becoming resistant to antibiotics

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What is it called when over time an animal may change behavior or physical appearance due to a change in their environment.

• adaptation

• genetic variation

• resistance

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When a portion of a population becomes physically or geographically separated, what is this called?

• selective breeding

• speciation

• genetic change

• resistance

When an organism becomes better adapted to their environment survives & reproduces better than less well adapted organisms do.

• genetic change

• genetic resistance

• natural selection

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What can two different species have in common?

• ancestors

• offspring

• populations

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Why can insects adapt very quickly to insecticides ??

• insects form separate species

• the insects generation time is short

• their genetic structure is stable

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