germ-elements

Updated: May 29, 2025

Comparing this animal with an association like Volvox, we discover the same differentiation into immortal germ-elements and mortal cells, concerned respectively with the Hydra's racial existence and with its individual life; but far-reaching changes have come about in the biological relationships of the second class of cells.

Henry Edward Crampton - The Doctrine of Evolution: Its Basis and Its Scope