Question

Match the following columns and select the correct option.

$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{(a)}& \text{Adult with radial symmetry and larva with bilateral symmetry}& \text{(i)}& \text{Pleurobrachia}\\ \text{(b)}& \text{Gregarious insect}& \text{(ii)}& \text{Limulus}\\ \text{(c)}& \text{Book gills}& \text{(iii)}& \text{Ophiura}\\ \text{(d)}& \text{Bioluminescence}& \text{(iv)}& \text{Locusta}\end{array}$

• A. (a) - (iv), (b) - (i), (c) - (ii), (d) - (iii)
• B. (a) - (iii), (b) - (ii), (c) - (i), (d) - (iv)
• C. (a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)
• D. (a) - (iii), (b) - (ii), (c) - (iv), (d) - (i)

Answer 1

The correct option is C (a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)

Locusta is a gregarious, polyphagous, economically harmful insect. Book gills are present in Limulus (king crab). In echinoderms, radial symmetry is exhibited by adults whereas bilateral symmetry is present in their larval stages.