Neural canal is present in
humerus
tibia-fibula
vertebral column
cranial bones
C.
vertebral column
A typical vertebra has a centrum or body and neural arch. The hole formed by the neural arch
is the vertebral foramen. The vertebral foramina of all vertebrate form the vertebral canal or neural canal.
Class Crustacea differs from lnsecta in having
two pairs of antennae
jointed foot
chitinous cuticle
none of the above
Which of the following character is present essentialy in chordates
Ventral spinal chord
Dorsal heart
Pharyngeal gill slits
Blood flow in forward direction in ventral blood vessels
If dorsal nerve of spinal cord is broken down then its effect is
no impulse is transmitted
impulse is transmitted but slowly
impulse is transmitted fast
no effect on impulse
Sigmoid notch is formed by
cavity formed by humerus
cavity formed by radius-ulna
cavity formed by tibia-fibula
cavity formed by femur