OH 9, found at Olduvai, has the largest browridges of any known hominin. Identify the browridge on this Homo erectus skull.

Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."

How many chromosomes does each human cell contain? a. 23 chromosomes b. 26 chromosomes c. 43 chromosomes d. 46 chromosomes

In which layer do organisms on earth love?