Natural Selection Review

The breeding of organisms for desired characteristics.

• selective breeding

• camouflage

• variations

• natural selection

Characteristics of a species that enable it to survive.

• adaptations

• selective breeding

• artificial selection

• ancestor

Explains how populations change as their environment changes.

• natural selection

• camouflage

• selective breeding

• behavioral adaptation

Slight differences in the appearance of individual members of a species.

• variations

• naturalist

• adaptations

• mimicry

Why did the population of peppered moths in England change from light to dark after the Industrial Revolution?

• Light moths were easy to see against sooty trees and were eaten
• Light moths were killed by soot
• The birds that ate the dark moths were killed by soot
• Dark moths were produced by industrial processes

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Why do frogs and other organism reproduce so many eggs or offspring?

• so that their babies can have friends to play with
• the more offspring the more likely the offspring will survive
• the more offspring the less likely offspring will survive 
• the more offspring the less competition

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According to Darwin's theory of natural selection, the individuals that tend to survive are those that have...

• variations best suited to the environment. 
• the ability to change their bodies to fit the environment. 
• the best luck. 
• the biggest body. 

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The graph shows the change in percentages of grey prey in a population over time. What conclusion can be drawn from the graph?

• Grey prey had a high fitness in the desert sand environment

• Grey prey had a high fitness in the mountain rock environment

• There was an increase in mutations in the population

• There was an increase in variation in the population

Genetic drift is change in the allele frequency of a population due to...

• random chance
• natural selection
• non-random mating (sexual selection)
• artificial selection

This mechanism of evolution occurs when individuals migrate between populations.

• Extinction
• Gene flow
• Genetic drift
• Natural Selection