Definition of Planula. Meaning of Planula. Synonyms of Planula

Here you will find one or more explanations in English for the word Planula. Also in the bottom left of the page several parts of wikipedia pages related to the word Planula and, of course, Planula synonyms and on the right images related to the word Planula.

Definition of Planula

Planula
Planula Plan"u*la, n.; pl. Planul[ae]. [L., a little plane.] 1. (Biol.) 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. Sometimes used as synonymous with gastrula.

Meaning of Planula from wikipedia

- A planula is the free-swimming, flattened, ciliated, bilaterally symmetric larval form of various cnidarian species and also in some species of Ctenop****s...
- M. planula may refer to a few different species. Macrochlamys planula [zh], a species of air-breathing land snails in the family Ariophantidae Magosphaera...
- corners of a single opening with lips fusing. E.g. Acoela resemble the planula larvae of some Cnidaria, which exhibit some bilaterian symmetry. They are...
- complex life cycle. The medusa is normally the ****ual phase, which produces planula larvae. These then dis**** widely and enter a sedentary polyp phase which...
- coral planula to nearby reefs, and the selection of a spot while avoiding harmful UV radiation, sedimentation and shading, giving the planula the best...
- Magosphaera planula was a spherical multiflagellated multicellular microorganism discovered by Ernst Haeckel in September 1869 while he was collecting...
- cycle. The basic pattern is medusa (usually the adult or ****ual phase), planula larva, polyp, medusa. Symmetry is tetramerous, with parts in fours or multiples...
- begin their lives as tiny, free-swimming larvae known as planulae. As a planula settles down, it gives rise to a colony of polyps that are attached to...
- Heterocyemida Wagener's larva Dicyemida infusoriform larva Cnidarians planula (= stereogastrula), actinula Ctenophora cydippid larvae Platyhelminthes...
- There is an increasing size from starting stage planula to ephyra, from less than 1 mm in the planula stage, up to about 1 cm in ephyra stage, and then...