If memory cells are always present after the first exposure to a virus, then why do people get the flu
every year?

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent

What is the name of the type of cell division that occurs in the prokaryotic cell cycle

What drives an advertising campaign?