What is the least amount of time you should stay in your heart rate ?

a. 20 minutes
b. 10 minutes
c. 5 minutes
d. 2 hours

Compare contrast to curl up and arm hang tags and explain why different test cannot be used interchangeably

Which of these is a symptom o anorexia nervosa

How does the endocrine system affect the body's functions? o o o o it secretes enzymes directly into the bloodstream. it secretes hormones directly into the bloodstream. it secretes enzymes through ducts to the surface of organs. it secretes hormones through ducts to the surface of organs.