<span>A disease is a disorder of structure or function in an organism; diseases are especially characterized by different symptoms. Diseases may be caused by a variety of mechanisms including invasion of a foreign organism or substant to genetically inherited diseases.</span>
<span>Of the physical activities listed , which is the most Vigorous ?
C. playing a game of vollyball
</span>
Hepatitis B is the only sexual transmitted disease that has a vaccine available
Ann needs to be using condoms and avoiding oral sex. STDS are transmitted through body fluids.
