What functionally adaptive mechanism would you expect to find in an animal that lives in a cave and is exposed to low-intensity light only?
A) a large number of rods
B) very good color vision
C) very good visual acuity
D) both a and c

Question

Quizplus · Accepted Answer

In low-intensity light environments such as caves, animals would benefit from having a large number of rods in their eyes. Rods are specialized cells in the retina that allow for low-light vision and are more sensitive to light than cones, making them more useful in low-light environments. Additionally, color vision and visual acuity are less important in low-light environments, so it is unlikely for animals living in caves to have very good color vision or visual acuity.

What Functionally Adaptive Mechanism Would You Expect to Find in an Animal