science test behaviour Flashcards
what is symbiosis
Symbiosis is when individuals of different species are able to maintain long term relationships with eachother. This can be good for one, bad for one or good for both.
3 types of symbiosis
Mutualism ( when species 1 gains something from species 2 and species 2 also gains something++) , commensalism( when species 1 gains something but species 2 is neither hurt or harmed ++), parasitism ( when the host is harmed by the parasite +-)
examples of mutaulism
when a bird plucks out ticks from a deer, the bird get food and the deer gets cleaned.
examples of commensalism
when a bird sits on a cow. The bird gets a place to sit and nothing happens to the cow.
examples of parasitism
a tick biting a dog. The tick gets food while the dog is hurt and gets an infection.