If a population of 50 paramoecia present in a pool increases to 150 after an hour. What would be the percent growth or birth rate per individual per hour for this population?

100

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200

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150

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Solution

The correct option is A 200
Initial number of paramecium = 50
Number of paramecium after 1 hour = 150

Birth rate = $\frac{N u m b e r o f n e w p a r a m e c i u m}{I n i t i a l n u m b e r o f p a r a m e c i u m} x 100$

= $\frac{100}{50} x 100 = 200$

So, the correct answer is 200.

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If a population of 50 paramecia present in a pool increases to 150 after an hour, what would be the growth rate of population?

50

150

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