Question

when resources are proportionate to population, growth is exponential, its growth rate increases as the size of the population increases. on a graph, exponential growth is modeled by a j - shaped curve.

bacterial population

graph of bacterial population growth with time (minutes) on x - axis and population size on y - axis

order the time periods. start with the period during which the population had the highest growth rate. end with the period during which the population had the lowest growth rate.

highest growth rate

between minutes 90 and 120
between minutes 60 and 90
between minutes 120 and 150
between minutes 30 and 60
between minutes 150 and 180

Explanation:

Step1: Understand Growth Rate on Graph

Growth rate is the slope of the line segment between two time points. Steeper slope means higher growth rate.

Step2: Analyze Each Time Period

• Between 30 - 60: Slope is small (slow growth).
• Between 60 - 90: Slope is moderate.
• Between 90 - 120: Slope is higher than 60 - 90.
• Between 120 - 150: Slope is steeper than 90 - 120.
• Between 150 - 180: Slope is the steepest (highest growth rate).

Step3: Order by Growth Rate (Highest to Lowest)

1. Between minutes 150 and 180 (steepest)
2. Between minutes 120 and 150
3. Between minutes 90 and 120
4. Between minutes 60 and 90
5. Between minutes 30 and 60 (least steep)

Answer:

1. between minutes 150 and 180
2. between minutes 120 and 150
3. between minutes 90 and 120
4. between minutes 60 and 90
5. between minutes 30 and 60