What term describes a relationship between two organisms where one benefits and the other is unaffected? parasitism mutualism commensalism predation

The answer is commensalism. Parasitism is when one organism benefits, and the other suffers from the relationship. Mutualism is when both organisms benefit from the relationship. 

This is what i found on google“ the monomers combine with each other via covalent bonds to form larger molecules known as polymers. in doing so, monomers release water molecules as byproducts. this type of reaction is known as dehydration synthesis, which means “to put together while losing water. in the process, a water molecule is formed.” i hope this you