Fungi, they are decomposers of nature and are food for creatures. Like worms they are needed to decompose dead plants. For soil/nutrients.
<span>molecular genetics adds to our genes by DNA molecules.</span>
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)
Are you talking about the emoticon xO
All of them except d. But then again it depends on who you are and what you think about what a purpose is. You need all of the other choices to have something to think about what purpose really means.