Because T. rex was bipedal and had a reduced number of fingers, what can we infer from this?

T. rex also had only two fingers on its hands, rather than the three seen in most other carnivorous dinosaurs, so its arms and hands really do appear to have been less important than they were in its relatives.

Explanation:

it is what it is.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely