-
among most
bilaterians,
where the
special sense organs and
central nerve ganglia become concentrated at the front/rostral end.
Bilaterians constitute...
-
other bilaterians. However, a 2007
study concluded that
Acoela and
Nemertodermatida were two
distinct groups of
bilaterians. Xenoturbella, a
bilaterian whose...
- and
molecular markers that are
present in
bilaterians and
absent in cnidarians, ctenop****s, and
bilaterians. Steinmetz, Kraus, et al.
showed that the...
- It is
often suggested that the
basalmost bilaterians are the Xenacoelomorpha, with all
other bilaterians belonging to the
subclade Nephrozoa. However...
-
Nephrozoa is a
proposed major clade of
bilaterian animals. It
includes all
bilaterians other than Xenacoelomorpha. It
contrasts with the Xenambulacraria...
- of the
nervous system in
radiata is
relatively unstructured.
Unlike bilaterians,
radiata only have two
primordial cell layers,
endoderm and ectoderm...
- nets seen in
acoels (basal
bilaterians) and
cnidarians are
thought to be the
ancestral condition for the
Planulozoa (
bilaterians plus
cnidarians and, perhaps...
- and
bilateral symmetry in
bilaterians. Alternatively, the
second suggestion is that an
ancestor of
cnidarians and
bilaterians had
bilateral symmetry before...
-
estimates are
compatible with an
Ediacaran bilaterian,
although it is possible,
especially if
early bilaterians were small, that the
bilateria had a long...
- A **** or
testis (pl.: testes) is the male
gonad in all
bilaterians,
including humans. It is
homologous to the
female ovary. The
functions of the...
