Human Evolution

The ability to walk upright on two legs is called:

• bipedalism

• quadropedalism

• bicyclepedalism

• tripedalism

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Click all the correct answers!

Bipedalism probably evolved because...

• The climate in Africa changed 10 million years ago.

• Rain forest changed into woodland and savanna.

• Our ancestors depended on trees less and less.

• Our ancestors needed to communicate using language.

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All of these help us to be bipedal EXCEPT:

• S-shaped spine

• short, wide pelvis

• arched feet

• opposable thumbs

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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What is the scientific name for modern day humans?

• Homo Habilis

• Homo Sapiens

• Homo Erectus

• Neanderthal

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

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