ap bio chapter 8.2

Does not have an atmospheric component

phosphorus

Primarily absorbed by plants through their roots

nitrogen, phosphorus, water

Urine plays a major role in this cycle

Nitrogen

fertilizers are an aritficial source for these

nitrogen, phosphorus

oceans will absorb this when there is a higher concentration in the atmosphere

carbon

plants and animals would lose access to much of this cycle without bacteria

nitrogen

this cycle wouldnt be much different without living things on earth

water

more of a limiting resource for plants than for animals

nitrogen, phosphorus

water escapes from plant tissues

transpiration

the process in which water gets from the surface to underground sources

percolation

rain

precipitation

water goes from gas to liquid

condensation

death releases carbon into the soil

decomposition

phytoplankton in the ocea will decrease the carbon oxygen concentration

photosynthesis

big concern for climate change

combustion

may act as a buffer for the co2 produced by human activities

oceanic-atmospheric co2 exchange

the release of excess nitrogen from animals

how animals get their nitrogen

consumption

n2 -> nh3

nitrogen fixation

nh3 -> no3-

nitrification

no3- -> n2

dentrification

eosion of rocks (phosphorus)

weathering

how animals get their phosphorus

consumption

releases phosphates into the soil

decomposition

how plants get their phosphorus

assimilation

two animals who are working against each other to get the same prey

competition

one animal eating another

predation

both species benefit from each other

mutualism

one species benefits and the other is neither benefitted nor harmed

commensalism

one species benefitted and the other is harmed

parasitism

plants and animals would lose access to much of this cycle without bacteria

nitrogen

plants and animals would lose access to much of this cycle without bacteria