Botany-(general)
NEET Botany (general) MCQ Question
Type: MCQ-numerical-Medium-Class 12
In an experiment involving two competing species, the intrinsic rate of increase (r) for species A was measured as 0.2 per week in isolation. In the presence of species B, this rate decreased to 0.1 per week. What percentage decrease in the intrinsic rate of increase does species A experience due to competition from species B?
A
50%
B
20%
C
75%
D
25%
Correct Answer
Option A
Detailed Explanation
The intrinsic rate of increase for species A decreases from 0.2 per week to 0.1 per week due to competition. The percentage decrease is calculated as [(0.2 - 0.1) / 0.2] * 100 = 50%. This demonstrates the competitive impact of species B on species A.
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