វគ្គជំនាញកុំព្យូទ័រ
ចំណេះដឹងទូទៅ
ម្ហូបអាហារ
កំប្លែង
ទស្សន៍ទាយ
តូច
មធ្យម
ធំ
Vertebrata
Same as:
myelencephala
ENGLISH MEANING
noun
1.
(PLURAL)
One of the
grand
divisions
of the
animal
kingdom
,
comprising
all
animals
that
have a
backbone
composed
of
bony
or
cartilaginous
vertebrae
,
together
with
Amphioxus
in
which
the
backbone
is
represented
by a
simple
undivided
notochord
. The Vertebrata
always
have a
dorsal
, or
neural
,
cavity
above
the
notochord
or
backbone
, and a
ventral
, or
visceral
,
cavity
below
it. The
subdivisions
or
classes
of Vertebrata are
Mammalia
,
Aves
,
Reptilia
,
Amphibia
,
Pisces
,
Marsipobranchia
, and
Leptocardia
.