5. a) A scientist measures the rat population in an ecosystem. The population follows a logistical growth curve. When the rat population reaches 2,000, the rats begin to compete with each other for resources.
They reach a carrying capacity of 5,000. Draw the growth curve for the rats on the graph below. Label the
point where they begin competing and where they reach carrying capacity. (6 points)
7000 +
6000+
5000+
Rat Population
4000+
3000+
2000
1000+
0 -
Time