Artificial and Natural Selection Quiz

What distinguishes artificial selection from natural selection?

• Artificial selection occurs naturally, without human involvement.

• Artificial selection involves human choice, while natural selection is driven by environmental pressures.

• Artificial selection always leads to higher biodiversity.

• Natural selection cannot produce new traits in organisms.

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Which of the following is an example of artificial selection?

• Wild lions evolving sharper teeth over generations.

• Farmers breeding cows that produce more milk.

• Polar bears developing thicker fur in cold climates.

• Lizards with better camouflage surviving longer.

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What is the main purpose of artificial selection?

• To maintain the natural balance of ecosystems.

• To produce organisms with traits desirable to humans.

• To eliminate all variations in a species.

• To speed up the natural process of evolution.

How does artificial selection benefit agriculture?

• By creating entirely new species of plants.

• By reducing the need for irrigation.

• By improving crop yields and disease resistance.

• By eliminating natural predators.

Which trait is most likely to be enhanced through artificial selection in domestic dogs?

• Their ability to survive in the wild.

• Traits such as size, coat color, or temperament.

• Their tendency to form new species.

• Their resistance to natural predators.

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What is one disadvantage of artificial selection?

• It is unpredictable and random.

• It reduces genetic diversity, making populations more vulnerable to diseases.

• It always leads to extinction of other species.

• It increases the natural mutation rate.

Which example best demonstrates natural selection rather than artificial selection?

• A gardener choosing the best-tasting tomatoes to plant each year.

• A scientist cross-breeding fish to produce brighter colors.

• A population of moths becoming darker to blend into soot-covered trees.

• A farmer breeding wheat for higher yield.

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What role do humans play in artificial selection?

• They act as environmental pressures that favor certain traits.

• They choose which individuals to breed based on desired traits.

• They ensure natural predators remain in the environment.

• They create new genes that did not exist before.

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In natural selection, the traits that increase an organism’s survival chances are often passed on because:

• Humans ensure those traits are chosen.

• Those traits allow the organism to reproduce more successfully.

• They are genetically engineered into the population.

• The environment forces all organisms to have the same traits.

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Artificial selection can be compared to:

• The natural extinction of weaker species.

• The intentional breeding of plants for sweeter fruit.

• The random mutations occurring in a population.

• The way predators only hunt certain prey species.

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