- Life Sciences
the end part of the digestive system that consists of the caecum, colon, rectum and anus.
process whereby excess amino acids are broken down in the liver to form urea.
the destruction of a donated organ by the immune system of the recipient.
the process whereby substances dissolved in the blood (such as H+ ions, nitrogenous waste and...
single-celled organisms with all life functions performed within the cell.