Question

question 9 of 10
the graph shows three different projections of human population growth.
which two colored lines on the graph show the human population reaching carrying capacity?
a. line a and line b
b. line a and line c
c. line b and line c
d. line b and line d

Explanation:

Carrying capacity is the maximum number of individuals that an environment can support. In population - growth graphs, when a population reaches carrying capacity, its growth levels off. Line B shows a slowdown in growth and then a relatively stable level (approximating carrying capacity), and line C also shows a similar pattern of reaching a maximum and then stabilizing (or slightly decreasing). Line A continues to grow without leveling off (exponential - like growth), and line D is the historical actual growth which was still increasing in the given time frame (not reaching carrying capacity as per the graph).

Answer:

C. Line B and line C