Question

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

• A. 50 per hour
• B. 200 per hour
• C. 5 per hour
• D. 100 per hour

Answer 1

The correct option is D 100 per hour

Initial population : 50

Final population : 150

Population growth rate = (Final population - Initial population)/Time taken for population change

= (150-50) paramoecium / 1 hour

Population growth rate = 100 paramoecia per hour

So, the correct answer is '100 per hour'.