Card Set Information
Ecology flash cards
What is a natural selection?
a characteristic that makes an individual better suited to its environment may eventually become common in that species
What is a adaptions?
the behaviors and physical characteristics that allow organisms to live successfully in their envirronments
What is niche?
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
What are the 3 types of ineractions among organism?
What is competition?
struggle between organisms to survive as they attempt to use the same limited resource
What is predation?
An interaction in which one organism kills another for food
What is predator?
an organism that dose the killing
What is the effect of predation on population size?
populations of predators and their prey rise and fall in related cycles
What are some examples of animals adaptation?
running fast, tentacles of poison,stingers big eyes,mimiery, protective covering,false coloring camouflage
sticky, bulbs cactus, rose thorn
What is symbiosis?
a close relationship between two species that benefits at least one of the species
What are 3 types of symbiotic relationship?
What is mutualism?
a relationship in which both species benefit and the other is nether helped or harmed
What is commensalism?
A relationship in which one species benefits and the other is neither helped or harmed
What is parasitism?
involves one organism living on or inside another organism and harming,but not killing, it
What is parasite?
the organism that benefits in a parasitic relationship
(usually smaller that the host)
Ex:fleas,ticks,leeches, and tapeworms
What is a host?
The organism that a parasite lives on or in.The host is harmed by the parasite
What is a prey?
the organism that is killed