invasive species
trophic levels
symbiosis
biomagnification
nitrogen cycle
100

an animal that invades a location it does belong in.

what is "invasive species"

100

the bottom layer. (also the layer that contains plants)

what is "producers"
100

when two animals interact in a way that benefits both parties.

what is "mutualism"

100

highly popular in the 1940's

what is "DDT"

100

when plants take up amoneoum.

what is "assimilation"

200

the second layer.(herbavors)

what is "primary consumer"

200

when two animals interact in a way where one is beneftited and the other is harmed.

what is "paratisim"

200

the affect toxin consentraction affects animals in a food web

what is "biomagnification"

200

when a fixing bacteria changes air-born nitrogen into amoneoum.

what is "nitrogen fixation"

300

the third layer. (carnivors)

what is "secondary consumer"

300

when two animals interact in a way where one gains something and the other is unaffected.

what is "communism"

300

when bacteria turns nitrate into air-born nitrogen

what is "differcentation"

400

the energy source that powers the tropic levels.

what is "the sun"

400

the adding of oxygen to amoneoum to create nitrate.

what is "nitracation"

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