Which of the following trait in humans is not a morphological variation?
Answer Details
Ability to roll the tongue is not a morphological variation in humans. Morphological variations refer to differences in the physical structure or appearance of individuals within a species. Height, shape of head, and colour of skin are all examples of morphological variations. The ability to roll the tongue, on the other hand, is a genetic trait that is not related to physical structure or appearance. It is caused by the interaction of multiple genes and is not considered a morphological variation.