Multiple choice

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?

  1. 100

  2. 200

  3. 50

  4. 150
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Growth = 150 - 50 = 100. Percent growth = (Growth / Initial) * 100 = (100 / 50) * 100 = 200%.

AI explanation

The net increase in the population is 150 minus 50, which equals 100. Using the formula for percent growth rate, (Increase / Initial Population) * 100, we get (100 / 50) * 100. This simplifies to 2 * 100, giving a 200 percent birth rate per individual per hour.

Keep practicing — related questions