an animal that invades a location it does belong in.
what is "invasive species"
the bottom layer. (also the layer that contains plants)
when two animals interact in a way that benefits both parties.
what is "mutualism"
highly popular in the 1940's
what is "DDT"
when plants take up amoneoum.
what is "assimilation"
the second layer.(herbavors)
what is "primary consumer"
when two animals interact in a way where one is beneftited and the other is harmed.
what is "paratisim"
the affect toxin consentraction affects animals in a food web
what is "biomagnification"
when a fixing bacteria changes air-born nitrogen into amoneoum.
what is "nitrogen fixation"
the third layer. (carnivors)
what is "secondary consumer"
when two animals interact in a way where one gains something and the other is unaffected.
what is "communism"
when bacteria turns nitrate into air-born nitrogen
what is "differcentation"
the energy source that powers the tropic levels.
what is "the sun"
the adding of oxygen to amoneoum to create nitrate.
what is "nitracation"