Natural Selection

When the environment changes more quickly than a species can adapt, the species may become:

• Cold

• Overdeveloped

• Overpopulated

• Extinct

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NGSS.MS-LS1-5

NGSS.MS-LS2-4

What theory proposes that organisms with traits better suited to their environment are more likely to survive and reproduce?

• Acquired Characteristics

• Embryology

• Survival of the Smartest

• Natural Selection

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NGSS.MS-LS4-4

A fox with thicker fur than average would have a survival advantage over other foxes if:

• There is more competition for food in the fox population.

• The air temperature significantly decreases in winter.

• A drought occurs, limiting the amount of water available.

• A new disease appears that infects the foxes.

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NGSS.MS-LS2-4

NGSS.MS-LS4-4

The fur of the snowshoe rabbit changes to a lighter color in the winter. This allows the rabbit to blend in with its surroundings. This change is an example of:

• Adaptation

• Extinction

• Competition

• Succession

Tags

NGSS.MS-LS4-4

Due to genetic inheritance, members of a species can be slightly different from another in their traits. This is known as...

• Variation

• Overproduction

• Competition

• Evolution

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NGSS.MS-LS3-1

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NGSS.MS-LS4-4

What is evolution?

• A gradual change in a species over a very long period time.

• One animal turning into a completely different animal.

• Change in a habitat over time.

• A trait that enhances survival.

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NGSS.MS-LS4-2

NGSS.MS-LS4-4

Animals may fight, make threatening sounds,and act aggressively toward members of the same species. These behaviors usually occur as the result of:

• Adaptation

• Evolution

• Competition

• Variation

The finches on the Galapagos island were similar in form except for variations of their beaks. Darwin observed that these variations were useful for:

• Attracting a mate.

• Gathering food.

• Defending territory.

• Building nests.

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NGSS.MS-LS4-2

NGSS.MS-LS4-4

The movements of individuals into or out of a population provides a source of _______ to a population.

• Mutation

• Camoflage

• Variation

• Punctuated Equilibrium

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NGSS.MS-LS4-4

Organisms producing more offspring than are likely to survive in order to help ensure that at least some survive until adulthood is known as:

• Variation

• Overproduction

• Competition

• Evolution