Natural and Artificial Selection

What is selective breeding?

• Allowing animals to breed without any human intervention.

• Choosing specific animals or plants to reproduce based on desired traits.

• Randomly breeding animals in a controlled environment.

• Breeding animals in the wild.

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Why is genetic variation important in a population?

• It makes all individuals identical.

• It decreases the population's chance of survival.

• It increases the population's ability to adapt to changing environments.

• It has no impact on the population.

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What is an adaptation?

• A temporary change in behavior in response to an immediate threat.

• A physical or behavioral trait that has developed to allow an organism to better survive in its environment.

• A random mutation that does not affect the organism's chances of survival.

• A man-made change in an organism's DNA.

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What does "survival of the fittest" mean?

• The strongest animals in a population are the only ones that survive.

• Only the fastest animals in a population will survive.

• Individuals that are best adapted to their environment are more likely to survive and reproduce.

• All members of a population have an equal chance of survival.

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What is a mutation?

• A change in a hairstyle.

• A change in the weather patterns.

• A change in an organism's DNA.

• A decision to move to a different environment.

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Which of the following is an example of an adaptation?

• A polar bear's white fur in a snowy environment.

• A fish choosing to swim upstream.

• A car has air conditioning to keep passengers cool during hot weather.

• A human learning how to ride a bike

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What role do mutations play in evolution?

• They decrease genetic variation.

• They have no role in evolution.

• They can introduce new traits that may be beneficial, neutral, or harmful.

• They always result in negative effects on organisms.

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What is the primary goal of selective breeding in agriculture?

• To reduce the need for chemical fertilizers.

• To produce organisms with specific, desirable traits.

• To increase the genetic diversity of crops.

• To make farming more challenging.

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What is the difference between natural and artificial selection?

• Natural selection involves human intervention, while artificial selection does not.

• There is no difference; they are the same process.

• Artificial selection is guided by human choices, while natural selection is driven by environmental factors.

• Artificial selection can only occur in plants, while natural selection occurs in animals.

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Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice

• The hawks eat more dark mice than light mice because the dark mice taste better

• The hawks eat more light mice than dark mice because they can see the light mice more easily

• The hawks eat more dark mice than light mice because they can see the dark mice more easily

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