The excretory system
Answer all questions correctly

A1.) False

A2.) True

B1.) Kidneys

B2.) Urine

b3.) Bladder

b4.) salts

Explanation:

if your boyfriend is cheating on you, my best advice to you is to dump him, he's only going to drag you down. and if you do, don't fret there's plenty better that know how to treat a person right. i mean honestly, the whole point of a romantic relationship is love, and if you love someone you aren't going to cheat on them. i do believe in second chances, but why would he cheat in the first place? i personally feel that if someone cheats, they ruin any chance they wanted/had with you. i wish you the best of luck with this, hang in there.

b) the heart is a pump made of muscle and that is difficult to grow in the lab.