Pretty sure it was Darwin... While most scholars didn't travel long distances at that time, Darwin did. he experienced in remote areas the diversity of life and evolution of a species.
Because the molecules that make them up move closer together and become more compact
Allied health professionals work on the health care field, they provide services for identification and prevention of diseases, as well as rehabilitation and therapies for disorders or other health problems. Allied health professionals can be found on different work environments, since they involve a wide range of careers.
Allied health professionals can be physiotherapists, dietitians, radiographers, orthoptists, paramedics, dental hygienists, etc<em>. So they can be found in many different work environments, such as in hospitals, working side by side with doctors, as well as in ambulatory care centers, laboratories, schools, gymnastics, nursing residencies, and many other health care centers. </em>
Asexuality is a condition where a person doesn't develop any/enough sexual attraction towards other people , causing them have very little or almost none of sexual activities
Personally , i believe it's more of psychological thing. Probably some events in the past causing them to have this sexual preference
That's being said, everyone have every rights to be happy. whether they want to date or don't want to date, they can do whatever they like
hope this helps