Which of the following animals are included in grade radiate?
a) coelenterates
b) nematodes
c) platyhelminthese
d) arthropodes
Explanation: also called cnidarians. They are diploblastic
Which of the following animals are included in grade bilateria?
a) mollusks and chordates
b) nematodes and arthropods
c) platyhelminthese
d) all of these
Explanation: body of these animals can be cut into two identical halves only in one plane
The
animals of grade bilateria are……..
a) diploblastic
b) triploblastic
c) both a and b
d) none of them
Animals of which phylum are bilaterally symmetrical in their larval stages but the adults gain a radial symmetry?
a) coelenterata
b) mollusca
c) echinodermata
d) arthropoda
In diploblastic animals, jelly like non cellular material present between the two layer called……..
a) plasma
b) gel
c) mesogloea
d) CSF
Which of the following is/are not present in diploblastic animals?
a) transport system
b) control center of nervous system
c) anus
d) all of these
Explanation: the undigested food is excreted through mouth.
