Evidence from ancient skeletons suggests that the first mammals appeared over _______________ million years ago, whereas the earliest primates first evolved approximately _______________mill ion years ago.
a. 200/65
b. 265/150
c. 175/65
d. 100/5
Question 2
Which technique of making tools involves the preparation of a striking platform at one end of a specially prepared core, after which three or four long, triangular flakes are detached, leaving a nodule shaped like a tortoise shell?
a. Oldowan
b. Acheulian
c. Paleoindian
d. Levalloisian
e. Mousterian
The deer mouse and the African elephant represent extremes among mammals of r versus K selection.
Evidence for big game hunting by archaic H. sapiens is suggested by the excavations at the Boxgrove
Evidence for a Coincidence Detector in the Brain of a Barn Owl
Common skin signs are often evidence of an illness or disorder. A scale is a thin, dry flake of ...
In crocodilians, birds, and mammals, the heart has four chambers: two atria and two ventricles. Oxyg
Representatives of major orders of placental mammals