-
Diploblasty is a
condition of the
blastula in
which there are two
primary germ layers: the
ectoderm and endoderm.
Diploblastic organisms are organisms...
- (eû) 'well' μετά (metá) 'after' and ζῷον (zôion) 'animal'), also
known as
diploblasts,
Epitheliozoa or Histozoa, are a
proposed basal animal clade as a sister...
-
meaning 'pore bearer'), a
basal animal clade and a
sister taxon of the
diploblasts. They are
sessile filter feeders that are
bound to the seabed, and are...
-
triploblastic animals—that is, all
multicellular animals except sponges and
diploblasts. It is a
structure composed of
nervous tissue positioned along the rostral...
-
delineated according to the
following cladogram: Animals: Porifera,
Diploblasts Diploblasts: Ctenophora,
ParaHoxozoa ParaHoxozoa: Placozoa, Cnidaria, Bilateria/Triploblast...
- triploblastic,
possessing a
mesoderm in
addition to the germ
layers found in
Diploblasts.
Triploblastic animals develop recognizable organs.
Fertilization leads...
-
sister to
diploblasts in some studies,
making the
membrane originate once in the
history of life. But more
recent studies have
disregarded diploblast-homoscleromorph...
- Yasui, K. (May 2006). "Lower
Cambrian Vendobionts from
China and
Early Diploblast Evolution". Science. 312 (5774): 731–734. Bibcode:2006Sci...312..731S...
- from 800 Ma.
Separation from the
Porifera (sponges) lineage. Eumetazoa/
Diploblast:
separation from the
Ctenophora ("comb jellies") lineage. Planulozoa/ParaHoxozoa:...
- Some
invertebrates such as
arthropods have an open
circulatory system.
Diploblasts such as sponges, and comb
jellies lack a
circulatory system.
Blood is...
