Question

select the correct answer. which part is the middle layer of the wall of the eyeball? a. lens b. retina c. sclera d. choroid

Explanation:

The wall of the eyeball has three layers. The outer - layer is the sclera, the middle - layer is the choroid, and the inner - layer is the retina. The lens is not part of the wall layers.

Answer:

D. choroid