Eye variance across species depends on Evolutionary adaptations. Option C
Evolutionary adaptations mostly determine the variation in ocular traits among species. Due to differences in their environments, lifestyles, and means of survival, various species have evolved distinct eye shapes and characteristics.
For instance, herbivores may have eyes designed for a wide field of vision and motion detection, but predators may have eyes specifically designed for depth perception and low light vision. Different species evolve different eye traits in response to evolutionary forces in order to improve their fitness in particular ecological niches.
Missing parts;
Eye variance across species depends on which of the following?
a) Altitude
b) Diet
c) Evolutionary adaptations
d) Geographic location