Match each question about choosing a contraceptive with the best answer. a. when used exactly as designed, are most contraceptive methods more than 50 percent effective? b. are spermicidal methods of contraception more effective than hormonal methods? yes no

when used exactly as designed, are most contraceptive methods more than 50 percent effective? - yes

are spermicidal methods of contraseption more effective than hormonal methods? - no

i believe the answer would be negative peer pressure

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.