What were the skills and knowledge of paleolithic man​

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Explanation:

Paleolithic Period, was a period when chipped stone tools were used. It was a period when wood, stone tools and bone tools were used.

The Paleolithic people were known to be skillful hunters and had a knowledge regarding infrastructure and art which can be seen in their making of jewelleries.

They also developed sharp weapons which were made from stone for hunting and also did paintings.

b) the heart is a pump made of muscle and that is difficult to grow in the lab.