Adaptations and speciation

Variations, Adaptations and Speciation

Multiple Choice

Differences between members of the SAME species are called

• predators

• variations

• traits

• selections

Multiple Select

Which of the following are examples of variations in a species?

• some people have different colored eyes

• some rabbits can't find enough food

• all beetles have 6 legs

• some finches have larger beaks

• some ladybugs have different numbers of spots

Multiple Choice

ALL variations in a species are adaptations

• true

• false

Multiple Select

Which of the following are examples of adaptations?

• the giraffe's long neck allows it to eat the leaves at the tops of trees

• snowshoe rabbits have large feet that allow them to run across deep snowdrifts

• humans have different colored hair

• male peacocks have long, colorful tail feathers

Multiple Choice

What is the role of genes in evolution?

• As humans lost body hair they had to wear genes to keep their legs warm

• Parents with recessive genes die from overproduction

• Only traits that are controlled by genes can be acted on by natural selection

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Multiple Choice

Geographic isolation occurs when some members of a species get separated from the rest of the population by a geographic barrier.

• true

• false

Multiple Select

Which of the following are examples of behavorial isolation?

• two populations of iguanas become cut off from each other by a river

• two populations of frog live in the same pond but develop different mating songs

• two populations of birds live in the same area but one is nocturnal and the other is active during the day

Multiple Choice

Sexual selection occurs when animals that are stronger or more attractive are more successful in attracting mates and therefore more likely to pass on their traits to their offspring.

• true

• false

Multiple Choice

In 2027 a new virus emerges turning 74.3% of the population into flesh-eating zombies. All humans who don't turn in to zombies have type A blood. Future generations of humans all have type A blood. This is an example of

• gradualism

• punctuated equilibrium