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Question

Match the following:

Population Interaction Example
A. Predation I. Cuscuta and hedge plants
B. Commensalism II. Balanus and Chathamalus
C. Parasitism III. Cactus and moth
D. Competition IV. Orchid and mango

A
A-III; B-IV; C-I; D-II
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B
A-IV; B-III; C-II; D-I
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C
A-I; B-III; C-II; D-IV
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D
A-III; B-IV; C-II; D-I
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Solution

The correct option is A A-III; B-IV; C-I; D-II
Competition is process in which the fitness and survival ability of one species is significantly lower in the presence of another species. Example: Balanus and Chathamalus

For instance, Chthamalus (a type of barnacle) is generally only found in the high tide zone -where it is best adapted to survival / most competitive. This is its realised niche. However, if a neighbouring type of barnacle (Balanus) is removed Chthamalus can actually occupy the entire intertidal zone -its fundamental niche.

Predation is a relation between two organisms in which one organism captures and feeds on other. Example: Cactus and moth

Commensalism is a relation between two organisms in which one benefits and the other neither derives benefit nor harms. Example: Orchid and mango

Parasitism is a relation between organisms in which one lives as a parasite on another and harms the host. Example: Cuscuta and hedge plants


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