Why is the brain an important component of the nervous system a. it produces nerve cells for other parts of the body b. it produces antibodies c. it produces adrenaline and other hormones d. it processes information from the peripheral nervous system

Dwarf galaxies are select one: a. relatively rare. b. not very bright c. mostly spiral shaped. d. none of these.

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur