Match List-I with List-II
| List-I Population interactions | List-II Species A / Species B |
|---|---|
| (A) Competition | (I) - / 0 |
| (B) Amensalism | (II) + / 0 |
| (C) Commensalism | (III) + / - |
| (D) Parasitism | (IV) - / - |
'+' sign for beneficial interaction, '-' for detrimental and '0' for neutral interaction
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A)-(IV), (B)-(I), (C)-(II), (D)-(III)
(A) Competition — this matches (IV) - / -. Two species use the same limited resource, such as food or space. Each species reduces what is left for the other, so both are harmed.
(B) Amensalism — this matches (I) - / 0. One species is harmed while the other is not affected at all. The second species gains nothing from the harm it causes.
(C) Commensalism — this matches (II) + / 0. One species benefits and the other is neither harmed nor helped, as with an orchid growing on a mango branch or barnacles on a whale.
(D) Parasitism — this matches (III) + / -. The parasite lives on or in the host and takes its food from it. The parasite gains and the host is harmed.
Note: A similar question was also asked in CUET (UG) 2025 on 02-06-2025 (Slot 2), on 29-05-2025 (Slot 1) and on 27-05-2025 (Slot 2).