ontogenesis

Example Sentences

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But these efforts were so seriously marred by ignorance of comparative anatomy, an imperfect acquaintance with ontogenesis, and a complete neglect of phylogenesis, that they could not have more than a passing success.

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

Haeckel demonstrates the parallelism between ontogenesis and philogenesis—between the successive forms in the evolution of the embryo and the successive forms of the individual in the evolution of a race.

From The Mechanism of Life by Leduc, Stéphane

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)

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

"We also believe," he added, growing bolder, "in the fundamental, biogenetic law that ontogenesis is an abridged repetition of philogenesis."

From Tillie, a Mennonite Maid; a Story of the Pennsylvania Dutch by Martin, Helen Reimensnyder