Selection On

What type of selection is depicted in the picture?

• stabilizing

• directional

• disruptive

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NGSS.HS-LS4-4

Robins typically lay fours eggs. If more then four eggs are produced then the baby chicks are malnourished while smaller egg numbers result in no viable (able to live) baby chicks. This is an example of

• stabalizing

• disruptive

• directional

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_{What type of selection?}

• Directional 
• Stabilizing
• Disruptive

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Which of the three graphs shows stabilizing selection?

• A
• B
• C

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Which of the three graphs shows disruptive selection?

• A
• B
• C

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NGSS.HS-LS4-4

If finches with large beaks and finches with small beaks increase in a population while finches with average sized beaks decreases, which pattern of natural selection has occurred?

• Directional selection
• Disruptive selection 
• Stabilizing selection

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Human babies don't do well if they are born too small. If they are too big complications can occur during birth. Baby size should then be selected for by which method?

• stabilizing
• directional
• disruptive
• Beyonce is having twins

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NGSS.HS-LS4-4

An extreme phenotype is favored causing the alleles to shift toward that phenotype

• Disruptive Selection
• Directional  Selection
• Stabilizing Selection
• Artificial Selection

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Genetic diversity decreases and individuals at the center of the curve have higher fitness.

• Disruptive Selection
• Directional  Selection
• Stabilizing Selection
• Artificial Selection

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What type of natural selection is this: When a group of deer migrated to a cold mountain, the thin-furred deer and average-furred deer died. The thick-furred deer survived and eventually the population became thicker-furred.

• Disruptive Selection

• Directional Selection

• Stabilizing Selection

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NGSS.HS-LS4-4