Chapter 9

	An organism that produces its own food from inorganic compounds and a source of energy.
	The capture of usable energy from the environment to produce organic compounds in which that energy is stored.
	The amount of living material, or the amount of organic material contained in living organisms, both as live and dead material
	Autotrophic bacteria that can derive energy from chemical reactions of simple inorganic compounds
	The flow of energy through an ecosystem -- from the external environment through a series of organisms and back to the external environment
	A measure in a system of the amount of energy that is unavailable for useful work. It increases as disorder of a system increases.
	Production before respiration losses are subtracted
	Organisms that cannot make their own food from inorganic chemicals and a source of energy and therefore live by feeding on other organisms
	The production that remains after utilization. It is also measured as the net change in biomass or in stored energy
	Synthesis of sugars from carbon dioxide and water by living organisms using light as energy. Oxygen is given off as a by-product
	The production by autotrophs
	The complex series of chemical reactions in organisms that make energy available for use
	The production by heterotrophs
	Formed by an energy source, ecosystem, and energy sink, where the ecosystem is said to be an intermediate system between the energy source and the energy sink
	The ratio of the biological production of one trophic level to the biological production of the next lower trophic level