Answer:
The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body.
Explanation:
안녕하세요 모두 팔로우 해주시고 감사합니다
1.과학적인 방법
2.관찰
3.질문
4.과학은 너무 지능적이기 때문에
가장 똑똑해 주세요
