After being modified, gemmules are released from the cell and travel in the circulation to the gametes. |
Development consisted of the orderly assembly and expression of the gemmules transmitted via the parental germ cells to the progeny. |
The gemmules possess two sorts of affinity, one of which might be called propagative, and the other germinative affinity. |
Dendrites branch repeatedly, and their surfaces are studded with spines or gemmules, thus expanding the receptive cell surface. |
Numerous species of sponges produce gemmules, masses of cells enclosed in resistant cases, that can become new sponges. |
Some species also form internal buds, called gemmules, which can survive extremely unfavorable conditions that cause the rest of the sponge to die. |