This is false. They were prominent in Upper Paleolithic. Although some studies have been conducted on this using some supposedly found tips, they were proven to not have been purposefully manufactured to be used for hunting or fighting, and have been done so by nature and by mistake.
Answer:
C.
A smaller sample size increases generalizability of a study (:
Explanation:
just took the quiz hope this helps.
I don't knoe what you are sayin.i kinda do understand. its helpful if you
add a picture next time
