Define the following terms by giving examples:
Diploblastic
An undifferentiated layer, mesoglea, is present in between the ectoderm and the endoderm.
Example: Phylum Cnidaria and Ctenophora.
Poikilotherms
(a) Oviparous
(e) Homeotherms
(c) Radial symmetry
(d) Bilateral symmetry