Natural Selection and Adaptations

Before the industrial revolution the birds were eating more black moths. After the industrial revolution the birds started eating more white moths. Why

• The birds thought the white moths tasted better.

• There were not any black moths to eat

• The white moths stood out on the dark trees so the birds could see them easier.

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This scientist developed the theory of evolution as he studied the finches.

• Charles Darwin

• Isaac Newton

• Albert Einstein

• Marie Curie

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A farmer wants to increase the amount of food produced by corn crops. If the farmer selectively breeds the plants, for which trait should the farmer select?

• Taller stems

• Deeper roots

• Resistance to pesticides

• More cobs on plant

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What is the primary mechanism by which natural selection operates?

• Genetic drift

• Mutation

• Survival of the fittest

• Gene flow

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Which of the following is an example of natural selection in action?

• A farmer breeding cows for higher milk production

• Antibiotic resistance in bacteria

• A scientist genetically modifying crops

• A dog learning to fetch a ball

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Which of the following best describes the concept of "survival of the fittest"?

• The strongest individuals always survive

• The individuals best adapted to their environment survive and reproduce

• Only the largest individuals survive

• Survival is based on random chance

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a body part or structure that helps an organism survive

• external adaptation

• behavioral adaptation

• internal adaptation

• structural adaptation

an adaptation on the outside of an organism's body.

• external adaptation

• behavioral adaptation

• internal adaptation

• structural adaptation

Which of the following is an example of a structural adaptation?

• A bird migrating to a warmer climate

• The thick fur of a polar bear

• A plant opening its flowers during the day

• A lizard changing its colour to match its surroundings

Which of the following is an example of behavioural adaptation?

• The long neck of a giraffe

• Birds building nests

• The webbed feet of a duck

• The camouflage of a chameleon