Examlex
Testosterone is produced by the seminiferous tubules.
Genus Homo
A genus of the family Hominidae that includes modern humans (Homo sapiens) and several extinct species.
Origins
The point or place where something begins, arises, or is derived.
Oldowan
Relating to or denoting the earliest known stone tool industry, characterized by simple, mostly unifacial core and flake tools used by early humans.
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