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self-feeding; makes its own food by the process of photosynthesis.
organisms, such as plants, which are able to produce their own organic foodstuffs from inorganic...
a non-finite verb that cannot stand on its own; a 'helping' verb that precedes the main verb, e....
a non-finite verb that cannot stand on its own; a 'helping' verb that precedes the main verb, e....
(also called mean) the sum of a set of quantities divided by the number of quantities in the set...
the average mass of all the different isotopes of an element.
the total cost divided by total number of commodities produced.
total fixed costs of production divided by the output of production
(between two points on a curve) the inclination of a straight line through two points on a curve...
the revenue received for a good; found by dividing total revenue by units of output.