Evolution Review

Which of the following are selection pressures in nature?

• Selective breeding by humans

• Available food

• classification of organisms

• Competition for mates

• Hot, dry climate

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NGSS.MS-LS4-4

NGSS.MS-LS2-1

What is the cause of the biodiversity found on the planet today?

• Populations or organisms adapting to different environments

• An asteroid carrying organisms to Earth from another planet

• Individual organisms acquiring traits to help them survive

• A series of mutations leading to a KNOWN outcome

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NGSS.MS-LS4-4

NGSS.MS-LS2-4

How would a warming climate affect the species in an ecosystem?

• individuals might die off but a species cannot disappear completely

• species would increase in number to offset the numbers killed by the heat

• species that have never been seen before would suddenly appear

• individuals best able to survive the heat would become more numerous

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NGSS.MS-LS4-4

NGSS.MS-LS2-4

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In a cooling environment, which species will have the best chance for survival?

• the one with the smartest individuals

• the one with the smallest body size

• the one with the most genetic variation

• the one with the largest population

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NGSS.MS-LS4-4

Which of the following are examples of geographic isolation?

• When a storm blows a population of finches to a new island so they can no longer mate with the finches on the mainland

• A mountain range prevents two types of goat from mating, causing the gene pool to become less varied

• Two populations of deer living near each other happen to mate during different times of the year

• A deepening canyon cuts two populations of squirrels off from each other

• Two populations of birds have developed different mating calls

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NGSS.MS-LS2-4

What does the similarity of these structures tell us about these organisms?

• They grow at different rates

• they have a common ancestor

• They evolved slowly

• They do the same thing

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NGSS.MS-LS4-2

What is speciation?

• when a population reaches a balance and change is no longer occuring

• when populations move away from each other

• when species begin to pass on acquired traits and change their behavior

• when two species can no longer interbreed

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NGSS.MS-LS4-2

What do we call similar structures that were passed down from a common ancestor?

• vestigal structures

• variable structures

• homologous structures

• fossil structures

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NGSS.MS-LS4-2

Occasionally a mutation produces a bird with a new characteristic. What determines whether this bird will be the beginning of a new species?

• The bird must dominate the other birds and reduce their ability to reproduce

• The bird must be able to live in the usual environment for that fish

• The mutation must provide some type of advantage for the bird

• The mutation must make the bird very different from other fish

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NGSS.MS-LS4-4

Which two species are most closely related?

• A and B

• B and C

• A and C

• all are equally related

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NGSS.MS-LS4-2