Ck 12: Life Science: Excretion

[Free Registration/Login may be required to access all resource tools.] You might have noticed that sometimes your urine is darker than usual. This can happens when your body is low on water and trying to reduce the amount of water lost in urine. Your body is striving to maintain homeostasis and get rid of its wastes through the process of excretion. Learn more about excretion in this learning module produced by CK-12.