H The following statement is FALSE concerning white blood cells:

A. They are smaller than red blood cells and have small nuclei.
B. Some white blood cells surround and consume harmful microbes.
C. Act as the body’s defense system.
D. They produce chemicals called antibodies that fight infection.

Which of the following is a true statement? a. the male sex hormone is called estrogen. b. the female sex hormone is called testosterone. c. both sexes manufacture some amount of the sex hormone associated with the opposite sex. d. only males secrete testosterone and only females secrete estrogen

Which of these is a symptom o anorexia nervosa

What is difference between an epidemic and a pandemic? a) an epidemic is a disease; a pandemic is a treatment.b) an epidemic is restricted to a local region; a pandemic is global.c) an epidemic has low mortality; a pandemic has higher mortality.d) an epidemic is caused by a bacterial infection; a pandemic is caused by a viral infection.