The cenozoic era is also referred to as the
a. first era.
b. age of dinosaurs.
c. age of mammals.
d. age of fish.

In which part of the body is a ball-and-socket joint found?

Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.