Question

In which one of the following, the genus name, its two characters and its phylum are not correctly matched? Genus nameCharactersPhylum(d)Periplaneta(i)Jointed appendages Arthropoda(ii)Chitinous exoskeleton

Answer 1

Explanation:

Pila is a genus of freshwater snail of family Ampullariidae. It belongs to phylum Mollusca. It has unsegmented body. Asterias is a genus of the Asteriidae family. It belongs to phylum Echinodermata. It has hydraulic system called as water vascular system for locomotion, feeding and respiration. Sycon is a genus of calcareous sponges belonging to the family Sycettidae. It belongs to phylum Porifera. Porifera means pore bearing. It has canal system with is used for locomotion, feeding and reproduction. Periplaneta is a genus of cockroaches. It belongs to phylum Arthropoda. It has joined appendages and chitinous exoskeleton.