If an older person went to the doctor with a fever, chills, body aches, and a cough, what would the doctor most likely suspect the person has?
a.
strep throat
b.
common cold
c.
meningitis
d.
influenza

Maintaining a healthy weight allows the respiratory system to work more effectively because a. oxygen is being delivered more adequately. b. the heart does not have to pump as forcefully. c. the capillaries are constricted. d. the lung capacity allows for small amounts of air.

Aperson who doesn't have enough calcium in his or her diet is at risk for developing bones that are weak and break easily. this condition is known as  a.  osteoporosis.    b.  crohn's disease.    c.  celiac disease.    d.  hemophilia.

True or false. mucous membranes secrete mucus that traps pathogens.