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How do you calculate the rate of change in a population?
(Births per unit of time - deaths per unit of time)/unit of time. For example, if the city of Anabru had 100 births and 70deaths in a year, the population growth rate would be 30 per year. If the population of Anabru were 10,000 at the beginning of the year, in percent, the growth rate would be 30/10,000 x 100% = 0.3%
What is the number of people per unit of arable land called?
physiologic population density
What is another word for the average number of people per square mile?
Population density, the definition is the average number of people in one unit, but unit is commonly one square mile.
What does it mean if a population is in equilibrium?
The birth rate and the Death rate are equal, providing there is no immigration/emigration of the population.
What does the rate of growth do during exponential growth?
Exponential growth implies that the rate of growth increases as time passes. So, it's not that "one cell" becomes "two cells" in two seconds and "three cells" in three seconds - that's linear growth. If you plot a chart of "Number of cells" against "Time" or "Number of cycles", the number of cells increases with a ratio greater than 1:1 each time unit or cycle.
