Natural Selection and Speciation

Who developed the Theory of Evolution by Natural Selection?

• Robert Hooke

• Thomas Malthus

• Watson and Crick

• Charles Darwin

• Gregor Mendel

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Offspring sometimes inherit a gene that has a slight _, or change, from the gene the parent has.

• mutation

• adaptation

• stimulus

• response

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Check any of the following concepts that are part of natural selection.

• overproduction

• genetic variation

• selection

• adaptation

• playstation

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Speciation occurs when two populations of the same species become so different they can no longer interbreed.

• True

• False

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What process is being shown in this image?

• Variation

• Natural Selection

• Selective Breeding

• Homeostasis

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Look at the diagram. The blue line represents a new river. What evolutionary outcome will likely occur for the beetles?

• Natural Selection

• Speciation

• Extinction

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What most likely caused the finches on the Galapagos Islands to have beaks that were different from the finches on the mainland?

• There were different types of predators on the islands.

• The finches on the mainland could not fly high enough.

• There was no water on the islands.

• There were different food types on each island.

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The process where organisms better adapted to their environment survive and have offspring is called

(a)  

• Natural Selection

• Fitness

• Artificial Selection

• Speciation

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​ (a)   modifies populations of organisms, the fittest survive and reproduce, passing on their traits. ​ (b)   species die out. Populations diverge over time into ​ (c)   . This is ​a basic summary of how (d)   works.

• Natural Selection

• Unfit

• new species

• Biological Evolution

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An inherited trait that increases an organisms ability to survive and reproduce in its environment is called a(n)

• Allele

• Fitness

• Variation

• Genes

• Adaptation

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