Breathing, heart beating, and food digestion are examples of activities using what type of muscle ?
a. voluntary
b. cardiac
c. smooth
d. involuntary

The fauces connects which of th following structures to the oropharynx

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .

How far away is the nearest black hole from earth?