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biology chapter 14
key words for chapter 14
the total mass of living matter in a given unit area
the organic circulation of carbon from the atmosphere into organisms and back again
process of converting chemical energy of food in to a form usable by cells, typically ATP
the transfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere
Cyclic movement of phosphorus in different chemical forms from the environment to organisms and then back to the environment
herbivores that obtain chemical energy by consuming organic matter made by producers
Photosynthetic organisms and chemosynthetic bacteria that, given a source of energy, can build organic matter from simple inorganic substances
Organisms that obtain chemical energy by eating primary consumers
organisms that consume the organic matter of seconday consumers
refers to the feeding level of organisms in an ecosystem
cyclic process by which water moves between parts of the biosphere