Match List I with List II
| List I | List II |
|---|---|
| A. Fig and wasp | I. Competition |
| B. Koel and crow | II. Commensalism |
| C. Balanus and Chthamalus | III. Mutualism |
| D. Egret and cattle | IV. Brood parasitism |
Choose the correct answer from the options given below
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → A-III, B-IV, C-I, D-II
(A) Fig and wasp — this matches (III) Mutualism. The wasp pollinates the fig flower while laying eggs in it, and the fig gives the wasp’s larvae food and shelter. Both gain.
(B) Koel and crow — this matches (IV) Brood parasitism. The koel lays its eggs in the crow’s nest, and the crow raises the koel’s young. Its eggs look like the crow’s eggs.
(C) Balanus and Chthamalus — this matches (I) Competition. On the Scottish coast the larger barnacle Balanus pushed the smaller Chthamalus out of their shared zone.
(D) Egret and cattle — this matches (II) Commensalism. Grazing cattle disturb insects, which the egrets catch. The egret gains; the cattle neither gain nor lose.