Gemmule vs Planula - What's the difference?
gemmule | planula |
(biology) A small gemma or bud of dormant embryonic cells produced by some freshwater sponges
:1978 Patricia R. Bergquist, "Sponges"
::The actual formation of gemmule's by fresh-water sponges is so clearly an adaptation to seasonal climatic changes, that at first it was reasonable to believe that seasonal alternation itself induced the ' gemmulation .
(obsolete) A hypothetical particle once thought to be the basis of heredity
(biology) In embryonic development, a vesicle filled with fluid, formed from the morula by the divergence of its cells in such a manner as to give rise to a central space, around which the cells arrange themselves as an envelope; an embryonic form intermediate between the morula and gastrula.
(zoology) The larva of a hydrozoan, which is free-swimming and covered in cilia.
In biology terms the difference between gemmule and planula
is that gemmule is a small gemma or bud of dormant embryonic cells produced by some freshwater sponges while planula is in embryonic development, a vesicle filled with fluid, formed from the morula by the divergence of its cells in such a manner as to give rise to a central space, around which the cells arrange themselves as an envelope; an embryonic form intermediate between the morula and gastrula.gemmule
English
Noun
(wikipedia gemmule) (en noun)References
*Oxford Dictionaries