- also be
deuterostomes, but
molecular studies have
placed them in the
protostomes more often.
Genetic studies have also
revealed that
deuterostomes have more...
- lineages, but are not part of the
formal definition: All
chordates are
deuterostomes. This
means that,
during embryonic development, the ****
forms before...
- to
other bilaterians.
Protostomes and
deuterostomes differ in
several ways.
Early in development,
deuterostome embryos undergo radial cleavage during...
-
happened at
least twice,
following different paths in
protostomes and
deuterostomes. This
accompanied or
facilitated other important evolutionary developments:...
-
between deuterostomes and
protostomes remains valid, the
descriptive accuracy of the name
protostome is dis****ble.
Protostome and
deuterostome embryos...
-
criterion used to
classify bilaterian animals into
protostomes and
deuterostomes. In the
first multicellular animals,
there was
probably no
mouth or...
- stem- and crown-group arthropods, stem-group vertebrates, and
early deuterostomes (a
group which as a
whole includes the vertebrates,
other invertebrate...
- that
brachiopods are
affiliated with
deuterostomes. The
traditional view is that the coelom(s) in
deuterostomes and
protostomes form by
different process...
- the
mechanism for
creating segments is
shared between vertebrates (
deuterostomes) and
arthropods (protostomes). The
first evidence of
bilateria in the...
-
gastrulation provides the
evolutionary prototype for
deuterostome development. In
deuterostomes (echinoderms, tunicates, cephalochordates, and vertebrates)...
