Topical Terminology > Haeckel, Ernst
1 Definition
Haeckel, Ernst
For Haeckel, Ernst we have a term and definition in Evolution.
Haeckel, Ernst (Evolution) 
A German biologist who lived from 1834-1919, Haeckel was the first to divide animals into protozoan (unicellular) and metazoan (multicellular) forms. His notion of recapitulation is no longer accepted.
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