-role of an organism in its habitat
-how it gets food and water, how it reproduces, etc.
3 Types of Interactions among Organisms
Competition, Predation, Symbiosis
The struggle between organisms for limited resources
(food, water, living space, etc.)
one organism (the predator) kills another (the prey) for food.
-adaptations help predators kill and defense strategies help prey avoid being killed
a close relationship between 2 species that is benficial to AT LEAST one of them
-mutualism, commensalism, parasitism
Both species benefit
example: bats and Saguaro cactus; algae and fungi in lichen
one species benefits, the other species is neither helped nor harmed
example: red tailed hawk and saguaro cactus, squirrel and oak tree
one organism (parasite) lives on or in another organism (host) and harms it
example: tapeworm and pig, tick and dog