Under the theories of Thomas Malthus, what is the difference between a positive check and a negative check on population growth?
A) A positive check reduces the fertility rate; a negative check reduces the mortality rate.
B) A positive check increases the fertility rate; a negative check increases the mortality rate.
C) A positive check increases the fertility rate; a negative check reduces the mortality rate.
D) A positive check reduces the fertility rate; a negative check increases mortality rate.
E) There is no difference since both reduce population growth.
D
You might also like to view...
The ultimate source of groundwater is the oceans
Indicate whether the statement is true or false
Compared to the long-term historical average rate of extinction, extinction rates today are ________
A) higher B) about the same C) lower D) changing from higher to lower rates in the past century
These mountains mark the line between Europe and Asia __________________.
Fill in the blank(s) with the appropriate word(s).
At saturation, the rate at which molecules of the solute are being dissolved is greater than the rate at which they are
precipitating at another location in the solution. a. True b. False