The ecosystem is an ecological system consisting of all of its biotic and abiotic factors
3) grass and pine cone
4) lemming, rabbit, insect, squirrel, deer, caribou and moose
5) badger and bear
6) wolf, snowy owl, hawk, fox and ant
7) lemmings would die out because they have no other food source
The competitive exclusion principle states that two species cannot occupy the same niche. When two species compete for the same habitat and resources, the end result is that one species eliminates the other.
A - Viruses cannot survive outside of a host whereas bacteria can.