Question

for most populations, available resources are limited and restrict how much a population can grow. as a result, most populations cannot exhibit exponential growth forever. consider once again the population of bacteria growing in a petri dish. the petri dish initially contained nutrient agar for food, but no further nutrient agar was added later. the dish also had a lid that kept bacteria from immigrating into or emigrating out of the dish. this graph shows the growth of the population of bacteria over 24 hours. bacterial population graph of bacterial population growth over time select all the statements about this population that are supported by the graph. the population grew relatively slowly for the first 12 hours. the population grew relatively quickly between hours 14 and 18. the population size did not change much after hour 19. the population grew exponentially for all 24 hours.

Explanation:

Step1: Analyze first statement

Check the graph for the first 12 hours. The population points are close to the x - axis (low growth rate), so the population grew relatively slowly for the first 12 hours. This statement is supported.

Step2: Analyze second statement

Look at the time between 14 and 18 hours. The population points show a steep increase (large change in population over a small time), so the population grew relatively quickly between hours 14 and 18. This statement is supported.

Step3: Analyze third statement

After hour 19, the population points are almost horizontal (little change in population), so the population size did not change much after hour 19. This statement is supported.

Step4: Analyze fourth statement

Exponential growth has a continuously increasing growth rate (curved upwards without leveling off). The graph levels off after some time, so the population did not grow exponentially for all 24 hours. This statement is not supported.

Answer:

The population grew relatively slowly for the first 12 hours.
The population grew relatively quickly between hours 14 and 18.
The population size did not change much after hour 19.