Predation:This is when one organism (the predator) hunts and eats another organism (the prey).
Symbiosis:A relationship between two different species where at least one benefits. There are three types - mutualism (both benefit), commensalism (one benefits, the other is unaffected), and parasitism (one benefits, the other is harmed).
Resource Partitioning: The division of limited resources by species to help avoid competition in an ecological niche.