Answer: The answer is the inability to reproduce.
The inability to reproduce describes a state of infertility.
Explanation: Infertility can be defined as the inability to give birth to young ones. It is a condition of the reproductive system preventing the conception of children. Infertility problems can occur in women and men and there are many causes of infertility which vary from one person to the other. Some of the causes of infertility are blocked fallopian tubes, poor egg quality, low sperm count and so on.