In which one of the following the genus name, its phylum name and its two characters are not correctly matched, whereas the remaining three are correct

Options

(a) Pila-Mollusca- body segmented, Mouth with radula
(b) Asterias-Echinoermata-spiny skinned, water vascular system
(c) Sycon-Porifera- Pore bearning, canal system
(d) Periplaneta – Arthropoda – Jointed appendages, Chitinous exoskeleton

Correct Answer:

Pila-Mollusca- body segmented, Mouth with radula

Explanation:

Molluscans are soft bodied animals. Their body is unsegmented with a distinct head, muscular foot and visceral hump. In Pila the buccal cavity contains a resping organ, the radula with transverse rows of teeth.