The Bow and Arrow

question 3

Multiple Choice

The bow and arrow:

• A) did not change the basics of people's daily lives.
• B) fundamentally changed society.
• C) was more important than plant domestication in changing people's lives.
• D) led to a significant population growth.

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Definitions:

Amnion

A membranous sac that surrounds and protects an embryo or fetus in the amniotic cavity of vertebrates.

Yolk Sac

An extra-embryonic membrane in many vertebrates that provides food for the embryo via absorbed nutrients.

Gas Exchange

The biological process through which organisms exchange oxygen and carbon dioxide with their environment, typically occurring in the lungs or gills.

Fetus

A developing mammal or human from the end of the embryonic stage, recognizably human in form, until birth.