Question

Match the locomotory organs given with the phylum, in which they are seen. Choose the answer which gives the correct combination of the alphabets of the two columns:

Locomotory organ	Phylum
A. Pseudopodia	p. Mollusca
B. Parapodia	q. Chondrichthyes
C. Muscular foot	r. Protozoa
D. Fins	s. Annelida

• A. A- r, B- p, C- s, D- q
• B. A- p, B- r, C- s, D- q
• C. A- s, B- r, C- q, D- p
• D. A- r, B- s, C- p, D- q

Answer 1

The correct option is D A- r, B- s, C- p, D- q

Pseudopodia are the temporary extensions of the cytoplasm. These are used in locomotion and feeding. These are used by the protozoans and some of the flagellate protozoans. Polychaete worms are the group of worms which belong to the phylum of Annelids. They are characterized by an elongated and segmented body. They bear a pair of appendages called parapodia on each metamere. These are used for locomotion. The organisms which are mollusc and belongs to the class of Gastropoda, have a flattened muscular foot for locomotion. They have a head that bears stalked eyes. Chondrichthyans are the group of cartilagenous fishes. Many chondrichthyans possess two dorsal fins, one anterior (just behind the head) and another posterior (in front of the tail).

Thus, the correct answer is option D.