November 2 - their nitrogen from herbivores Waste dead...

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Reproductive effort does not affect the size of the seed because RE deals with the proportion of energy captured through by the whole plant used for reproduction and not the amount of energy in a single seed. Some species have big or small seeds Mineral flow is cyclic- can be reused, plants gets carbon from atmosphere in CO2 , through the process of photosynthesis it becomes glucose, glucose is modified and made into other things Cellular respiration- plants get CO2, photosynthesize, die, decay, and the soil respires and the CO2 is back in the atmosphere. Herbivores get their carbon from plants Carbon in the herbivore—animal dies, decay, respire, CO2 goes into the atmosphere (carbon cycle) Nitrogen cycle- comes from soil in the for of nitrates, ammonia Plants get nitrogen from soil, herbivores get their nitrogen from plants, and carnivores get
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Unformatted text preview: their nitrogen from herbivores Waste, dead plants, and animals; nitrogen in them is modified by bacteria and fungi, they convert waste products in to ammonia compounds, ammonia compounds can be taken up by plants, more bacteria convert ammonia compounds into nitrite, other bacteria converting nitrite into nitrate, which can be taken up by plants. Plants can get nitrogen from atmosphere indirectly; during a storm some nitrogen in the air can be converted into ammonia compounds (nitrogen fixation) and the plant can absorb it. Bacteria are turning atmospheric nitrogen into ammonia compounds. Consequences Nitrogen is released, grabbed by plants, actively taking up minerals, Nitrogen (or other mineral) is lost from the soil if there are no plants to grab it...
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This note was uploaded on 01/30/2012 for the course BIO 311D taught by Professor Reichler during the Fall '08 term at University of Texas.

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