Answer: Functional ability is a significant determinant of sexuality.
Explanation: Functionality is the ability of a person or an individual to be particularly suited for a given or sets of jobs or activities. Different sex have different kinds or degree of functionality.
The ability to get pregnant and deliver a child and breastfeeding are all linked to the functionality of a Female.
While males are known to be Masculine in nature with big muscles and other features like the Penis,the scrotum etc.