Strep throat, food poisoning, and anthrax are all diseases caused by?

What do you do if a teacher is unjustly grading you, but also id discriminating because your a girl in a dyn criminal justice class? its almost starting to become harassment because he wont leave me alone about it

Health and cardio respiratory fitness occurs when the heart is working, at minimum, 50 percent of heart rate reserve. true or false

An _ exposure is a repeated or prolonged exposure(over months or years) that may bring about slowly developing symptoms.