Question on: JAMB Biology - 2021
The number of plant species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomoea spp (5), Sida spp (7) and Imperata spp (23)
What is the percentage of occurrence of Imperata spp?
A
35%
B
16%
C
46%
D
23%
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Correct Option: C
Here's how to calculate the percentage of occurrence of *Imperata spp*:
1. **Calculate the total number of plants:** 15 (Guinea grass) + 5 (*Ipomoea spp*) + 7 (*Sida spp*) + 23 (*Imperata spp*) = 50
2. **Calculate the percentage of *Imperata spp*:** (Number of *Imperata spp* / Total number of plants) \* 100
= (23 / 50) \* 100
= 46%
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