Question

Column I contains larval stages and column II contains the groups to which they belong. Match them correctly and choose the right answer.

	Column I		Column II
A	Planula	1	Annelida
B	Tornaria	2	Mollusca
C	Trochophore	3	Arthropoda
D	Bipinnaria	4	Chordata
E	Glochidium	5	Echinodermata
		6	Coelenterata

• A. A- 6, B- 4, C- 1, D- 5, E- 2
• B. A- 2, B- 5, C- 1, D- 4, E- 6
• C. A- 5, B- 4, C- 3, D- 2, E- 1
• D. A- 4, B- 3, C- 2, D- 1, E- 5

Answer 1

The correct option is A A- 6, B- 4, C- 1, D- 5, E- 2

Planula is a free-swimming, flattened, ciliated, bilaterlaly symmetric larval form of various cnidarian species.
Tornaria larva is a planktonic larva of some species of Hemichordata and Chordata.
Trochophore larva is the small, translucent, free-swimming larva characteristic of marine annelids.
Bipinnaria is the first stage in the larval development of most starfish, belonging to the phylum Echniodermata.
Glochidium is the larva of freshwater mussel belonging to the phylum Mollusca. Thus, the correct answer is option A.