Secondary radial symmetry is found in |
|||||||
a) |
Cnidaria |
b) |
Jelly fish |
c) |
Echinodermata |
d) |
Hemichordata |
Secondary radial symmetry is found in |
|||||||
a) |
Cnidaria |
b) |
Jelly fish |
c) |
Echinodermata |
d) |
Hemichordata |
(c)
Secondary radial symmetry is found in phylum-Echinodermata. The members of this phylum are exclusively marine forms, in which the larvae are bilaterally symmetrical but later on, the symmetry of adults usually becomes pentamerous radial.
When the body is externally and internally divided into segments, it is called |
|||||||
a) |
True segmentation |
b) |
False segmentation |
c) |
Pseudo segmentation |
d) |
Asegmentation |
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