1) The excretory product in humans and animals  a) urea b) blood c) oxygen 2) The process by remove waste product of metabolism a) excretion b) respiration c) reproduction 3) kidney part to store urine before taking out from our body a) ureter b) kidney bladder c) urethra 4) 95% urine is water, is that mean urine is sterile? a) doubt b) no c) yes 5) Too much protein can be toxic and we can not keep a surplus of protein and amino acids in our bodies. a) yes b) no c) doubt

순위표

비주얼 스타일

옵션

템플릿 전환하기

자동 저장된 게임을 복구할까요?