22.Which of the following characteristic is not shown by Phylum Ctenophora- A. Asexual reproduction B. Bioluminescence C. Tissue level of organisation D. Indirect development
Option A The phylum Ctenophore exclusiely includes marine animals. Symmetry is biradial (radial + bilateral). The arrangement of comb plates gives the appearance of radial symmetry; the tentacles and branching of gastrovascular canals are of a bilateral type.
