- Life Sciences
a tough substance made from a modified polysaccharide that contains nitrogen. It is the main component of the exoskeletons of arthropods, the cell walls of fungi, the radula's of molluscs and the beaks of cephalopods.
the Latin name of an organism, consisting of the genus and the species names.
is a medical condition in which excess body fat has accumulated to the extent that it may have...
large blind-ending sac forming the first part of the mammalian large intestine, to which the...