Select the option with a correct representation of phylum of animals to the below-mentioned features: I. The body is supported by a skeleton made up of spicules or spongin fibers with choanocytes line the spongocoel. II. Specialized cells called flame cells help in osmoregulation and excretion. III. The body bears eight rows of ciliated comb plates which helps in locomotion. IV. The alimentary canal is complete with the well developed muscular pharynx.

Question

Select the option with a correct representation of phylum of animals to the below-mentioned features: I. The body is supported by a skeleton made up of spicules or spongin fibers with choanocytes line the spongocoel. II. Specialized cells called flame cells help in osmoregulation and excretion. III. The body bears eight rows of ciliated comb plates which helps in locomotion. IV. The alimentary canal is complete with the well developed muscular pharynx. (A) I II III IV Echinodermata Platyhelminthes Cnidaria Arthropoda (B) I II III IV Echinodermata Nematoda Ctenophora Annelida (C) I II III IV Porifera Aschelminthes Echinodermata Platyhelminthes (D) I II III IV Porifera Platyhelminthes Ctenophora Aschelminthes

Tardigrade Admin · Accepted Answer

In Porifera/sponges the body is supported by a skeleton made up of spicules or spongin fibers with choanocytes line the spongocoel.
In Platyhelminthes, the specialized cells called flame cells help in osmoregulation and excretion.
Ctenophora bears eight rows of ciliated comb plates which help in locomotion.
In Aschelmenthes the alimentary canal is complete with the well developed muscular pharynx.