The figure below demonstrates the growth curves of two organisms A and B growing in the same area. What kind of relation exists between A and B?
A
Competition
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B
Symbiosis
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C
Commensalisms
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D
Mutualism
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Solution
The correct option is A Competition The graph depicts the increase in biomass for organisms A and B with respect to time. In the absence of A, the organism B shows an increase in biomass with time and in the absence of B the organism. A shows an increase in biomass with time. This behaviour of the organisms in the absence of the other shows competition between the two of them for food and other resources. Thus the correct answer is option A.