1. These hypothetical hereditary units were similar to Darwin's gemmules . 2. There were gemmules for hands and feet, not for whole organisms. 3. Methods of asexual reproduction include both budding and the formation of gemmules . 4. There may be gemmules near the base of the sponge. 5. Gemmules are found in the freshwater family Spongellidae.6. The spire shows a peripheral cord with gemmules . 7. Some gemmules remained dormant for generations, whereas others were routinely carried by all offspring. 8. Freshwater gemmules may also include phytosynthesizing symbionts. 9. Gemmules from the same species but different individuals can join forces to form one sponge.10. As he put it, some aspects of the external environment could modify the inheritable gemmules .
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