Choose the correct matching. '+' for beneficial interaction'-' for detrimental and 'O' for neutral interaction.
| List-I | List-II | ||
|---|---|---|---|
| Species A | Species B | Name of Interaction | |
| (A) | + | + | (I) Competition |
| (B) | + | - | (II) Mutualism |
| (C) | - | - | (III) Amensalism |
| (D) | - | 0 | (IV) Predation |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
(A) + + — this matches (II) Mutualism.
(B) + - — this matches (IV) Predation.
(C) - - — this matches (I) Competition.
(D) - 0 — this matches (III) Amensalism.
NCERT Extract:
Population Interactions – “… Both the species benefit in mutualism and both lose in competition in their interactions with each other. In both parasitism and predation only one species benefits (parasite and predator, respectively) and the interaction is detrimental to the other species (host and prey, respectively). The interaction where one species is benefitted and the other is neither benefitted nor harmed is called commensalism. In amensalism on the other hand one species is harmed whereas the other is unaffected.”