Fossils of Thrinaxodon, a species that lived during the Triassic period, have been found in both South Africa and Antarctica. Thrinaxodon had a reptile-like skeleton and laid eggs, but small depressions on the front of its skull suggest it had whiskers

and, therefore, fur. Thrinaxodon may have been warm-blooded. The fossils of Thrinaxodon are consistent with the hypothesis that _____.
A) fossils found in a given area look like the modern species in that same area
B) the environment where it lived was very warm
C) mammals evolved from a reptilian ancestor
D) Antarctica and South Africa separated after Thrinaxodon went extinct


Answer: C

Biology & Microbiology

You might also like to view...

The letter "A" in the accompanying figure represents the ____

a. humerus b. pectoral girdle c. skull d. sternum e. pelvic girdle

Biology & Microbiology

DG0 vs. DG

What will be an ideal response?

Biology & Microbiology

A possible mutagen is

a. UV light b. translocation c. an anticodon d. hemoglobin

Biology & Microbiology

ANH is a hormone produced by the hypothalamus and secreted by the posterior pituitary.

Answer the following statement true (T) or false (F)

Biology & Microbiology