Science Questions plz answer?

Question

1. The first "wise humans" or, ________ _________, are called ___________.

2. these wise humans roamed the earth about ________ years ago.

3. cro-magnons were more intelligent and probably had a _________ ________.

4. to understand early humans, it is important to study chimpanzees. Why?

5. give three reasons that walking upright is an advantage.

6. how would charles darwin explain how a hominid like "Lucy" evolved into a large-brained human like us?

plz answer these questions i really need help.

Answer 1

sensible,powerful, human power

2

broken leg

Answer 2

1.  homo sapiens, modern humans

2.  200,000

3.  sophisticated culture?

4. We evolved from a common ancestor so likely share common behaviors.  Those that we share probably go back the farthest.

5.  It frees the hands to carry objects.  It reduces the amount of sunlight on the body and raises it up away from the hot ground.  It provides better vision by having a higher vantage point.

6.  Selection favored more intelligent hominids and they eventually evolved larger brains and more intelligence.