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11.Organisms and Populations
normal
Select the correct match
| $(I)$ | $(II)$ | $(III)$ |
| $(a)$ $+$ | $(i)$ $-$ | $(P)$ Amensalism |
| $(b)$ $-$ | $(ii)$ $-$ | $(Q)$ Commensalism |
| $(c)$ $-$ | $(iii)$ $0$ | $(R)$ Predation |
| $(d)$ $+$ | $(iv)$ $0$ | $(S)$ Competition |
A
$a-i v-Q, b-i i i-P, c-i i-S, d-i-R$
B
$a-i-Q, b-i i-P, c-i i i-S, d-i v-R$
C
$a-i-Q, b-i i i-P, c-i i-S, d-i v-R$
D
$a-i v-Q, b-i i-P, c-i i i-S, d-i-R$
(AIIMS-2019)
Solution
In commensalism type of interaction, one organism derives benefits $(+),$ and the other organism derives neither harm nor benefit. In amensalism type of association, one organism is harmed $(-)$ while the other organism is neither harmed or benefitted $(0).$
Standard 12
Biology
