Unit 8: Evolution

Evolution is a change in a population (frequency of alleles) over time.

• True
• False

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Who stated that you "aquire" new traits through use and disuse?

• Darwin
• Lamark
• Malthus

Who stated the theory of Evolution by Natural Selection?

• Darwin
• Lamark
• Malthus

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Who stated limited resources (food, water, shelter) limit population growth.

• Darwin
• Lamark
• Malthus

What is a theory?

• an educated guess based on observation
• a scientist's ideas
• hypothesis that has been supported and is accepted as true
• act of nature, often with a mathematical formula

______ is the ultimate source of genetic variation. 

• Mutation
• Adaptation
• Natural Selection
• Artificial Selection

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Variation means

• simmilarities
• differences
• genes
• adaptations

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__________ is when humans select for a trait. 

• Natural Selection
• Artificial Selection
• Genetic Drift

There are 3 different size turtle shells. (Small, medium, and large) What type of selection occurs if only the small survive?

• stabilizing
• disruptive
• directional

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There are 3 different size turtle shells. (Small, medium, and large) What type of selection occurs if only the small and large size turtles survive?

• stabilizing
• directional 
• disruptive

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