Speciation and Hominin Evolution

The ability to walk upright on two legs is called:

• bipedalism

• quadropedalism

• bicyclepedalism

• tripedalism

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Modern humans and their closest relatives belong to the same family. Members of this family are called:

• hominids

• primates

• homo sapiens

• Lucy

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All of these are advantages of bipedalism EXCEPT:

• Hands are free to carry food.

• Save energy when walking long distances.

• Hands are free to use tools.

• Easier to balance on two legs.

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Which hominid species is most closely related to Homo sapiens?

• Homo habilis

• Australopithecus afarensis

• Homo neanderthalensis

• Homo heidelbergensis

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What continent did humans evolve from?

• the Americas

• Asia

• Africa

• many places all at once

Who are the closest living relatives to humans?

• chimpanzees

• gorillas

• lemurs

• kangaroos

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Which of the following is the correct order of human evolution?

• walking upright, using tools, controlling fire, larger brains, language

• language, larger brains, controlling fire, using tools, walking upright

• larger brains, language, using tools, controlling fire, walking upright

• larger brains, walking upright, using tools, controlling fire, language

Related organisms have similar _______.

• Genetic Material

• Diet

• Behavioral Patterns

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What is the term for a feature that allows an organism to survive in its environment?

• adaptation
• variation
• homologous structure
• vestigial structure

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About 96% of the information in human DNA is found in gorilla DNA. This evidence supports which statement?

• Humans evolved from gorillas.
• Gorillas and humans diverged from a common ancestor.
• As gorillas evolve, they will become more similar to humans.
• Gorillas and humans are too different for meaningful genetic comparisons.

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