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a molecule that accelerates (speeds up) a chemical reaction, by lowering its activation energy, without being changed by the reaction.
a state in which the body temperature has risen to dangerously high levels.
single-celled algae that have two flagella and are found mainly in seawater but are also common...
the gradual wasting away of the body caused by severe malnutrition, in the form of inadequate...
primitive type of fish that lives very deep underwater and has four leg-like fins. It is thought...