What role does skin play in the excretory system? a. secretes excess water as sweat b. protects against pathogens c. absorbs water through osmosis d. facilitates gas exchange

The nursing instructor has been observing nursing students initiate an iv infusion. which action(s), if made by the nursing student, indicates that further instruction is needed? (select all that apply.) the nursing student:

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water