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the area that occurs between the high water and low water marks. It is exposed to the air at low tide and covered by water at high tide.
a liquid-filled body cavity formed within the mesoderm of some animals. The cavity occurs...
(also called caustic soda) a white solid, available in pellets, flakes or granules, with the...
a molecule that accelerates (speeds up) a chemical reaction, by lowering its activation energy,...
non-indigenous species which reproduce and spread more rapidly than indigenous species. This...
animals that lack a cavity between the digestive tract and the outer body wall.