-
Parenchymella is a type of
larva of a
demosponge composed of an
envelope of
flagellated cells surrounding an
internal m**** of cells.
Demospongiae develops...
- (sponges)
coeloblastula (= blastula, amphiblastula),
parenchymula (=
parenchymella, stereogastrula)
Heterocyemida Wagener's
larva Dicyemida infusoriform...
-
tissue and
developmental traits. For example,
calcineans develop from a
parenchymella (a
larva with a
solid center and
radial symmetry). Calcaroneans, on...
-
Repeated cleavage of the
zygote egg
takes place in the
mesohyl and
forms a
parenchymella larva with a m**** of
larger internal cells surrounded by small, externally...
- a
blastula without a
clear central cavity, forms. From May to July,
parenchymella larva, or
larva which is a m**** of
cells enveloped in
flagellated cells...
- shovel-like
structure on the end. Most of the
families are
viviparous with
parenchymella larvae that are
uniformly ciliated. As of 2018, the
following families...
- in
brood chambers until they
reach a
certain size, then dis**** as
parenchymella larvae.
During this
larval stage, they have a
strong preference for...
- the osculi. This
sponge is a hermaphrodite;
ciliated larvae known as
parenchymella larvae are
liberated into the
water and soon
settle on the substrate...
-
metazoan must be like that. He
called this
hypothetical metazoan ancestor parenchymella (later
commonly known as phagocytella; the term
parechymella adopted...
-
within the
sponge at
first before being liberated through the
oscula as
parenchymella larva.
These are planktonic, and when
sufficiently developed, settle...
