Homocysteine is bad for the heart because it can

a. damage the protective layers of the artery walls, which can ultimately lead to heart disease.
b. prevent the benefits of exercise from occurring.
c. make the heart beat more slowly.
d. cause very rapid weight gain.

The following statement about pathogens are true except for one, which statement is not true? a. pathogens belong in the human body b. pathogens can cause infectious diseases c. some pathogens can be classified as animals d. pathogens can multiply inside a host organism

Which of the following is not a fitness benefit of cycling a: very effective at burning fat b: provides an upper body workout c: provides an aerobic workout d: good exercise for out of shape people

During the sixteenth, seventeenth, and eighteenth centuries, the mentally ill were housed in