1. How Populations Grow
1. What are 3 important characteristics of a population?
2. What is population density?
3. What 3 factors affect population size?
4. What is immigration?
5. What is emigration?

2. 7. When could a population grow exponentially?
6. What is exponential growth?
7. When could a population grow exponentially?
8.What happens to a population as resources become less available?
9. What is logistic growth?
10. What is carrying capacity?

3. 1. What are 3 important characteristics of a population?
2. What is population density?
-the population’s geographic distribution, population density, & growth rate
-the number of individuals in a certain unit of area
Example: cacti usually have a low density, whereas wildflowers often have a high density

5. 3. What 3 factors affect population size?
4. What is immigration?
5. What is emigration?
-death rate (number of deaths), birth rate (number of births), & number of individuals that enter or leave population
-movement of individuals into a population, increasing population
-movement of individuals out of a population, decreasing a population

7. -when resources are not limited, under ideal conditions
6. What is exponential growth?
7. When could a population grow exponentially?
-the growth of a population that is unlimited, so population produces at a constant rate, causes a J shaped
curve:
-when resources are not limited, under ideal conditions

9. -when a population’s growth stops or slows after growing exponentially
8.What happens to a population as resources become less available?
9. What is logistic growth?
10. What is carrying capacity?
-population growth slows or stops
-when a population’s growth stops or slows after growing exponentially
-the max number of individuals that an ecosystem can support

10. http://media. pearsoncmg. com/bc/bc_0media_bio/bioflix/bioflix. htm