- however, has been the
nature of the
preoral region. The
obvious contradiction between a
theory that no-
preoral structures are segmental, and evidence...
- in
these species, the
chelicerae and the
bases of the
pedipalps form a
preoral cavity that
holds the food they are processing. The
stomach in the cephalothorax...
-
molecular studies. A 2020
study found numerous characters of the eye and
preoral region suggesting that the
closest relatives to
crown myriapods are the...
- posteriorly). Mite
digestive systems have
salivary glands that open into the
preoral space rather than the foregut. Most
species carry two to six
pairs of salivary...
-
scorpions and
almost all
spiders are
predators that "pre-process" food in
preoral cavities formed by the
chelicerae and the
bases of the pedipalps. However...
-
globular macronucleus surrounded by many
refractive granules and a big
preoral dome. Vďačný, Peter; Foissner,
Wilhelm (2016). "A huge
diversity of metopids...
- flatworms.
Catenulids are
characterized by an
ovoid brain located in the
preoral region. The
brain lacks a
distinct division into
anterior and posterior...
-
difficult to ****ess in the
wider picture.
Trilobites had a
single pair of
preoral antennae and
otherwise undifferentiated biramous limbs (2, 3 or 4 cephalic...
-
through a
gastrula or even a
blastula stage. New
larvae can
develop from the
preoral hood (a
mound like
structure above the mouth), the side body wall, the...
-
Carboniferous period. A
mature zooid has
three important regions, the
preoral disc or
cephalic shield, the
collar and the trunk. In the collar, the mouth...
