What is one of the most important ways in which the organisms interact?

Competition and predation are one of the most important ways in which organisms interact

What ways do organisms interact?-competition, predation, cooperation, symbiosis
-Competition: between same and different kinds of organisms, competes for available resources (food, light)
-Predation: between different kinds of organisms, hunt and kills each other in order to supply their energy (shelter)
-Cooperation: between same organisms, lives together and helps each other out (mates)
-Symbiosis: between different kinds or organisms, lives in close association with another kin of organism (space/territory)

The basic repeating unit of nucleic acids are known as nucleotides. a nucleotide consists of three distinct chemical groups.