The role is to build up water with its dam to create a lake thus creating parts of the ecosystem it is also food for some animals.
A polymer is made up of monomers. A monomer is a unit that occurs in repetitive chains. Lipids do not occur in repetitive chains, so they are not classified as monomers. Since they're not monomers, they can't make up polymers, either.
1. mother to fetus 2. through exposure to the antigen (virus, toxins, or cancer cells).
<span>When this situation happens you would begin by suspecting an opiate or barbiturate overdose then you would begin mouth-to-mask rescue breathing.</span>