Natural/Artificial Selection

What is natural selection?

• When reproduction occurs and mutations happen.

• When a offspring has the traits from its parents.

• When an organism is able to camoflauge in its environment.

• the process whereby organisms that are better adapted to their environment tend to survive and reproduce more offspring.

What must organisms do when an environment changes?

• Adapt

• Camoflauge

• become common

• fight

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"Survival of the Fittest" describes which theory

• a) natural selection
• b) gravity
• c) heredity
• d) string theory

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Survival of the Fittest and Evolution were proposed by what scientist?

• Charles Darwin
• Albert Einstein
• Steven Hawking
• Isaac Newton

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Do organisms "decide" to evolve and change?

• Yes, they know they need to change to survive 
• No, they change because of natural selection

Woodpeckers use their long, sharp beaks to obtain insects out of wood. What factor might contribute to the extinction of this species of woodpecker?

• A new source of food

• An overabundance of trees

• The use of pesticides in the forest

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If a species is no longer able to reproduce, it will

• Adapt to its environment

• Become immune to disease

• Become extinct

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Which of these is controlled by humans?

• Selective Breeding

• Natural selection

• Both

A trait that makes a species better suited to survive in its environment is called a(n) _________.

• variation
• adaptation
• natural selection
• isolation

Tags

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What characteristic did Darwin observe about the finches on the Galapagos Islands?

• Their feathers 
• Genotypes 
• Their beaks
• Their body sizes

Tags

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