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open water near the surface of a lake, pond or ocean.
anaerobic respiration that occurs in plants and results in the formation of ethanol and carbon...
the domain that contains prokaryotic micro-organisms. Some live in extreme environments, such as...
a chemical messenger produced and released by a cell or a gland in one part of the body of the...
organelles that only occur in the green parts of plants. They contain the green pigment...