1) List the waste products excreted by the above organ.
.... Excessive water, mineral salts and urea(尿素).
.... Excessive water, mineral salts and urea(尿素).
2) Based your answer in (1), name one other organ that excretes the same waste products.
.....Skin
3) What will happen when the organ in above is not able to function properly？
.....The toxic (毒性)will remain in the body and cause death eventually.
.....The toxic (毒性)will remain in the body and cause death eventually.
