Answer:
yes
Explanation:
it is basic health class stuff
Answer:
c. many infected people do not know they are infected.
Explanation:
I'm pretty sure this is the right answer Sry if its not
Answer: The heart consists of four chambers, two atria (upper chambers) and two ventricles (lower chambers). There is a valve through which blood passes before leaving each chamber of the heart. The valves prevent the backward flow of blood.
The answer is False, just took the test.
The answer is evaluating your present state of health. Best way to do that is to consult your doctor
and to see if you are fit enough for strenuous exercises. The next thing got a gym have the trainer
devise a plan to fit your health goals.
That way you will know the right type and amount of exercise you need to
be fit.