Name an important communication behavior that Stone Age humans lacked.

What will be an ideal response?


Stone Age humans were prehistoric in that they did not develop writing systems, and they did not communicate through writing.

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____________________ behavior refers to urination and defecation.

Fill in the blank(s) with the appropriate word(s).

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?What is the approximate width of a larger (15?8") exhaust valve seat? _____"

What will be an ideal response?

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The number one ingredient in poultry feeds is:

A. soybean meal B. corn C. calcium D. alfalfa

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all leaf springs are mounted to the vehicle lengthwise

a. true b. false

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