What does a total fertility rate that is less than 2.1 indicate?
A) that a population has no natural growth
B) that a population is growing slowly
C) that a population is growing quickly
D) that a population has reached its peak
E) A TFR that is less than 2.1 has no particular significance.
Question 2
How does an open system contrast with a closed system?
An open system is open to scientific scrutiny, while a closed system is not.
An open system is able to convert energy from one form to another, while a closed system is not able to do so.
An open system is prone to collapse, while a closed system is typically more sustainable in the long term.
An open system exchanges energy and/or materials with its surroundings, while a closed system does not.
Anatomy of the Lotka-Volterra equations for predator-prey population growth.
The ozone hole in September, 2003. Even as scientists verified that the rate of ozone depletion was
Population of Major Civilizations of Europe, Asia, and Africa, AD 1500
Cotton Production and Slave Population, 1800–1860
Fertility, Mortality, and the Net Rate of Reproduction in Sweden
What rate, compounded once every 3 years, is equivalent to 9% effective rate?