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

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

What factors contribute to the effect an environmental toxin has on the human body?

To confirm when to exclude children from school it’s recommended that you refer to guidelines from which of the following organizations