3.2 Vocabulary

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.

• Because they come from dominant alleles.

• Because they come from recessive alleles.

• Because the organism knew it needed that trait, survives, and passes it on.

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The differences among a species, like different bird beaks, are called

• genes.
• variations.
• traits.
• theories.

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Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice
• The hawks eat more dark mice than light mice because the dark mice taste better
• The hawks eat more light mice than dark mice because they can see the light mice more easily
• The hawks eat more dark mice than light mice because they can see the dark mice more easily

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All rabbits of the same species living in a particular area would be an example of a(n)

• population

• species

• community

• ecosystem

Which organisms are most likely to survive?

• the best adapted
• the fastest
• the strongest
• the most domesticated (tamed)

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Do organisms "decide" to evolve and change?

• Yes, they know they need to change to survive 
• No, they change because of natural selection

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Change over time

• Natural Selection
• Selective Breeding
• Homeostasis
• Evolution

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Mutations sometimes result in an adaptive trait.

• True

• False

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Mutations sometimes result in a non-adaptive trait.

• True

• False

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Traits introduced by mutation will always become more common in a population.

• True

• False

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