Speciation & Patterns of Evolution Review

What is speciation?

• combining of two species to form one with different traits

• isolation that affects mating behavior

• timing of mating that prevents normal sexual selection

• divergence of two or more species from an existing one

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NGSS.HS-LS3-2

NGSS.HS-LS4-5

A difference of chemical scents used for mating between two populations is an example of what kind of isolation?

• temporal

• behavioral

• geographic

• disruptive

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NGSS.HS-LS4-4

An earthquake causes an ocean channel to open up on an island where a low area previously existed. The island’s lizard population is now separated on the two parts of the island, providing an example of

• geographic isolation.

• behavioral isolation.

• disruptive selection.

• temporal isolation.

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NGSS.HS-LS4-4

Which of the following examples illustrates a temporal barrier to mating between populations?

• Populations of the same species of seal live on islands too far apart to swim between them for mating.

• Species of birds have elaborate courtship dances, and females select the best dancers as mates.

• Varieties of oak tree produce pollen during different seasons, so they can’t pollinate one another.

• Herds of caribou misinterpret each other’s mating behavior, so they fight instead of mating

What kind of isolation occurs when two populations of birds have different courtship dances?

• geographic

• sexual

• temporal

• behavioral

Which of the following processes is considered to be random?

• genetic mutation

• natural selection

• adaptive radiation

• coevolution

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NGSS.HS-LS3-2

The American flying squirrel and the flying phalanger of Australia live in similar environments and look very similar. However, they are not closely related. Their resemblance is most likely an example of

• sexual selection

• temporal isolation

• convergent evolution

• divergent evolution

The Galápagos Islands in the Pacific Ocean have varied habitats. Divergent evolution is occurring on these islands, meaning that the species that live there

• have lived unchanged through long periods of stability.

• are becoming more like each other in response to their habitats.

• change in response to changes in other species they interact with.

• had common ancestors but have become increasingly different.

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NGSS.MS-LS4-2

Like all flowering plants, the snapdragon must be pollinated to reproduce, but its flowers are closed. A bumblebee has just enough weight to open a snapdragon flower by landing on it. This adaptation is an example of

• convergent evolution

• coevolution

• divergent evolution

• speciation

Tags

NGSS.HS-LS4-4

The total and permanent disappearance of a species from Earth is called

• radiation

• coevolution

• extinction

• equilibrium

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NGSS.HS-LS4-5