There are a variety of microorganisms within larger organisms. Each type of microorganism can effect the organism in a different way.

Which of the following can microorganisms do when living on or inside a larger organism's body?
protect the body from infection
cause disease
aid digestion
make vitamins
create tooth cavities
A.
I, II, III, IV, and V
B.
II and V only
C.
II, III, and V only
D.
II, III, and IV only

The correct answer is: A. I, II, III, IV, and V