Population is defined as, "the total number of individuals of a species found in a geographical area, share or compete for similar resources, particularly interbred."
Following are the characteristics of the population :
1. Population size and density
2. Dispersion
3. Age structure
4. Natality of birth rate
5. Mortality or birth rate
6. Population growth
7. Life table
8. Bioticor Reproductive potential
9. Invironmental resistance
10. Carrying capacity
11. Sex ratio
12. Age ratio