Question

Match the following:

Column I	Column II
A. Choanocytes	I. Platyhelminthes
B. Cnidoblasts	II. Ctenophora
C. Flame cells	III. Porifera
D. Comb plates	IV. Coelenterata

• A. A-II, B-I, C-IV, D-III
• B. A-II, B-IV, C-I, D-III
• C. A-I, B-II, C-III, D-IV
• D. A-III, B-IV, C-I, D-II

Answer 1

The correct option is D A-III, B-IV, C-I, D-II

Presence of choanocytes is a characteristic feature of Porifera. Choanocytes line the body cavity or the spongocoel of the sponges.
Presence of Cnidoblasts is a characteristic feature of Coelenterata. Cnidoblasts help in anchorage, defence and capturing the prey.
Presence of comb plates is a characteristic feature of Ctenophora. It helps in locomotion.
Flame cells are a characteristic feature of phylum Platyhelminthes. It helps in osmoregulation and excretion.