IMG_20190226_135515.jpg Q. 59 biradiaL symmetry and lack of cnidoblasts are the characteristics of
(a) Hydra and starfish
(b) starfish and sca anernone
(c) stenoplana and Beroe
(d) Aurelia and Paramecium.
biradial is found in echinodermates while in cnidoblast have radial symmetry according to ncert . Is it wromg statment aur having some exception?
Biradial symmetry is a characteristic of ctenophora. Ctenoplana and Beroe both belongs to ctenophora and they lack cnidoblasts also which are a characteristic of Cnideria. Thus, correct ans is C