The human population on earth grew at an extraordinary rate during the 20th century, when it increased from 1.65 billion to 6 bi
llion. what kind of curve would accurately show the changes in the human population during the 20th century? A. a life span curve
B. an exponential curve
C. a logistic curve
D. a survivorship curve
The answer is B; exponential growth. This is
a phase of the S-shaped logistic curve of
population growth that is characterized by a high birth rate and low death
rate. The population doubles with each
generation. Exponential growth is modeled by use of a J-shaped curve.
