|Concept: term for an entity with certain properties. The properties of an object correspond to the features of the concept. These concept features are necessary in contrast to the properties of an individual object, which are always contingent.|
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Concepts/Mayr: they must be particularly "open" in science, so that further results can be included.
Concepts can be transferred unintentionally from one particular phenomenon to another. E.g. "mutation" initially used for species, later for genes.
E.g. "teleological": used for 5 different phenomena
E.g. "group": 5 different phenomena
E.g. "evolution": three very different processes
Das ist Biologie Heidelberg 1998