Natural Selection and Adaptations

After the industrial revolution began, most of the peppered moths observed were dark in color. Why?

• Light-color moths were more fit for survival because they were less camouflaged against the darkened, soot-covered tree bark.

• Dark-color moths were more fit for survival because they were less camouflaged against the darkened, soot-covered tree bark.

• Dark-color moths were more fit for survival because they were more camouflaged against the darkened, soot-covered tree bark.

• Light-color moths were more fit for survival because they were more camouflaged against the darkened, soot-covered tree bark.

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Which behavior would best help a species survive in a forest.

• Being active at night.

• Hibernation.

• Living in a park.

• Changing coat color from light to dark.

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Large fishing nets that are over 50 meters are used to catch tons of fish from the oceans. What is an effect of these large fishing nets on non-target organisms?

• Many non-target organisms become endangered species because they get caught in the nets.

• The non-target organisms are unable to adapt when dumped back in the oceans.

• The non-target organisms migrate to freshwater ecosystems.

• Many non-target small organisms that escape the nets decrease in number.

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An Adaptation is...

• a change or process in a species that helps it become bigger or smaller.

• a change or process that causes no change in a species.

• a change or the process of change by which an organism or species becomes better suited to its environment.

• a change or the process of change by which an organism or species is not able to adapt and survive.

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What will most likely happen to a species if the environment changes more quickly than the species can adapt?

• Evolve

• become extinct

• overpopulate

• become more diverse.

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Which adaptation and function would best suit a camel?

• Adaptation: thick fur and under wool Function: keep out blowing sand

• Adaptation: two rows of long eyelashes Function: protect against blowing sand

• Adaptation: nostrils can be closed Function: help it survive long periods without food and water

• Adaptation: long, strong legs Function: protect it from burns when it kneels on the hot desert sand

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He developed a theory of evolution.

• Abraham Lincoln

• Sir Isaac Newton

• Charles Darwin

• Jackie Robinson

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This is a man made type of extinction.

• Deforestation

• Asteroid Impact

• Long Winter

• Drought

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What represents a natural factor that can cause the extinction of organisms?

• land development

• over-harvesting

• volcanic eruptions

• deforestation

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This adaptation would be best for a desert environment.

• Mammals have thick layers of fat for insulation and light-colored fur for camouflage.

• Small mammals are nocturnal to escape the sun's most intense heat.

• Plants have air spaces in roots and specialized stems for buoyancy.

• Trees lose their leaves to conserve energy and prevent damage to the tree.

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