Ecology

a characteristic that makes an individual better suited  to its environment may eventually become common in that species

the behaviors and physical characteristics that allow organisms to live successfully in their envirronments

the role of a organism in its habitat, or how it makes its living

the niche includes the type of food the organism eats, how it obtains its food and which other organisms use the organisms as food

• 1.competition
• 2. predation
• 3. symbiosis

struggle between organisms to survive as they attempt to use the same limited resource 

An interaction in which one organism kills another for food

an organism that dose the killing

populations of predators and their prey rise and fall in related cycles

running fast, tentacles of poison,stingers big eyes,mimiery, protective covering,false coloring camouflage

sticky, bulbs cactus, rose thorn

a close relationship between two species that benefits at least one of the species

• 1. mutualism
• 2. commensalism
• 3. parasitism 

a relationship in which both species benefit and the other is nether helped or harmed

A relationship in which one species benefits and the other is neither helped or harmed

involves one organism living on or inside another organism and harming,but not killing, it

• the organism that benefits in a parasitic relationship
• (usually smaller that the host)
• Ex:fleas,ticks,leeches, and tapeworms

The organism that a parasite lives on or in.The host is harmed by the parasite

the organism that is killed