| The skin excretes RNase, which cuts up the RNA in RNA-based viruses. |
| Normally, the liver processes this bilirubin and excretes it into the bowel through the bile duct. |
| The embryo excretes this gonadotropin to initiate and control hemochorial placentation and to modulate immune tolerance. |
| One study he said fell short of the ethical standards of its time examined how the body retains and excretes plutonium. |
| When the cells eventually expire, the microreactors dissolve and the body excretes the waste. |
| Most notably, the insect excretes a sticky honeydew that covers the leaves and fruit and promotes the growth of black sooty molds. |
