ontogenesis

Example Sentences

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There has been no dearth of attacks—often violent attacks—on my conception of an intimate causal connection between ontogenesis and phylogenesis; but no other satisfactory explanation of these important phenomena has yet been offered to us.

From The Evolution of Man — Volume 1 by Haeckel, Ernst Heinrich Philipp August

This exceedingly important larval form, the "gastrula," makes its appearance in the ontogenesis of all tribes of animals.

From Was Man Created? by Mott, Henry A. (Henry Augustus)

A similar connection determines the relation between ontogenesis and phylogenesis.

From Three Contributions to the Theory of Sex by Brill, A. A. (Abraham Arden)

This resemblance is so close in the main features that we have only to repeat what we have already said of the ontogenesis of the Amphioxus.

From The Evolution of Man — Volume 2 by Haeckel, Ernst Heinrich Philipp August

Or, briefly stated, ontogenesis, or the embryonic development of the individual, is a brief recapitulation of phylogenesis, or the ancestral development of the phylum or group.

From The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 by Tyler, John Mason