You would have to have unlimited resources and no predators.
Organism is the answer i think
Consumers.
Producers make the energy themselves (like plants) - if I remember correctly.
Prey are the hunted organisms.
Predators are like hunters who eat other organisms but the correct terminology used in food chains is usually consumers - primary and secondary etc. (again if I remember correctly).
a type of organism that no longer exist on earth is said to be extinct.
B. rabbits changing fur color
