The monomer must be able to form stable covalent chemical bonds between units in order to polymerize.
Spongy bone has trabecular which serve as reinforcing plates against a force. The loss of spongy bones causes weakening of the internal support that the compact bone requires and the entire bone breaks.
Birds-Migratory
Freshwater Fish-local endemic
Large predators-sparse distribution
True water from nature has no taste
The name of the locatuon is called an active site.