The human body can be infected by many types of infectious agents, such as viruses, bacteria, fungi, and parasites. how are viruses, such as hepatitis, different from other types of infectious agents?

f) they need a warm environment to survive
g) they feed on the nutrients provided by the host
h) they cannot replicate without a host cell
j) they need protection from bacteria and other micro-organisms

Fitness evaluations are usually design for certain group of people

In a study of a weight loss program, 40 subjects lost a mean of 3.0 lb after 12 months. does the weight loss program have practical significance? a. yes, because the weight loss program worked and the subjects lost a mean of 3.0 lb. b. no, because the mean weight loss of 3.0 lb after one year does not seem to justify the program. c. no, because the sample of 40 subjects was too small to determine if the program was useful. d. yes, because the mean weight loss of 3.0 lb after one year does seems to justify the program.

What can evoke feelings of terror and panic