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

Answer 1

Answer: (D)

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.