Evolution and Theories of Natural Selection

Who proposed the theory of Darwinism?

• Jean-Baptiste Lamarck

• Alfred Wallace

• Charles Darwin

• Gregor Mendel

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What is one of the main ideas of Darwinism?

• Species remain unchanged over time

• Species change over time

• Species are created independently

• Species are fixed entities

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What is one type of evidence for evolution?

• Astrological signs

• Comparative anatomy

• Mythological stories

• Historical documents

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What does comparative anatomy study?

• Differences in diet

• Similarities and differences in body structures

• Differences in behavior

• Similarities in habitat

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What do homologous structures indicate?

• Different ancestry

• Common ancestry

• No relationship

• Random mutation

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Which of the following is an example of homologous structures?

• Human arm, whale flipper, bat wing

• Bird beak, fish fin, insect wing

• Tree leaf, flower petal, root

• Dog tail, cat whisker, horse mane

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What is the fossil record?

• A collection of ancient texts

• A record of past life forms preserved in rock

• A list of current species

• A record of weather patterns

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What are analogous structures?

• Structures with similar functions but different anatomy

• Structures with different functions and similar anatomy

• Structures that are identical in all species

• Structures that have no function

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What evidence does molecular biology provide for evolution?

• DNA and genetic code similarities

• Differences in physical traits

• Behavioral patterns

• Geographical distribution

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How do fossils show transitions between species?

• By showing the evolution of horses from Eohippus to modern horses

• By displaying current animal behaviors

• By illustrating plant growth

• By depicting weather patterns

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