| Two opposite forces operate in the growth and development of every population, one of them relates to the ability to reproduce at a given rate. The force opposing is called |
| a) | Biotic potential | b) | Environmental resistance |
| c) | Morbidity | d) | Fecundity |
| (b)The environmental check on biotic potential is called environmental resistance.Biotic potential overall reproductive output.Fecundity reproductive output, usually of an individual. |