SY25_Natural Selection Human Population

A difference in beak shape among members of the same finch species is an example of .

• variation

• reproduction

• competition

• selection

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NGSS.MS-LS4-4

Which of the following is an example of an environmental pressure?

• The air pressure in the atmosphere

• Breeding between two members of the same species

• A lake that's gradually running out of water

• A fight between two members of the same species

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When nature "selects" a variation, that means that the trait:

• Gets passed along from generation to generation

• Causes the population to shrink

• Has brought about a new species

• Helps prey escape predators

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NGSS.MS-LS4-4

The finch population of a remote island is 1000 finches on average. Choose the statement that best describes the climate during the five years shown in the graph.

• • A year of drought followed by four years of average or above-average rain

• A year of above-average rainfall followed by four years of drought

• Five years of drought

• A year of average rain followed by four years of above-average rain

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Which of the following is an inherited trait that increases an organism’s chance of survival and reproduction?

• adaptation

• mutation

• natural selection

• selective breeding

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A dog owner prefers very pointy noses for his dogs. So, he has dogs with the most pointed noses mate in hopes of getting puppies with very pointy noses. This process is called____________

• mutation

• gene therapy

• natural selection

• selective breeding

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NGSS.HS-LS3-2

Small changes in traits that cause variation are frequently caused by _____.

• adaptations

• mutations

• natural selections

• selective breedings

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NGSS.MS-LS3-1

A population of beetles changing from yellow to brown and surviving better is an example of _____.

• adaptation

• competition

• reproduction

• selective breeding

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An example of a physical adaptation is...

• a turtle hiding inside its shell
• The spikes on a porcupine fish
• a rabbit burrowing underground
• a viper biting when threatened

Which statement is true comparing natural selection and artificial selection?

• In natural selection, traits benefit humans and in artificial selection, the traits benefit the species

• In natural selection, traits benefit the species and in artificial selection, the traits benefit humans

• In natural and artificial selection, the process takes hundreds of years to occur

• In natural and artificial selection, nature determines what traits will be passed down to offspring.

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