A. size
B. ability to taste PTC
C. color
D. fingerprint
Correct Answer:
Option B – ability to taste PTC
Explanation
Morphological variation includes aspects of the outward appearance i.e shape, structure, color, pattern, size which is in contrast to physiology variation which deals primarily with function.
Morphological variation arises from a number of factors which can be bluntly classified as either genetic or environmental implanted into the process of evolution.