Question

the outer layer of the eye is the
○ sclera.
○ retina.
○ cornea.
○ choroid.
question 15 (2 points)
tears are secreted by
○ conjunctiva.
○ lacrimal glands.
○ sclera.
○ choroid.

Explanation:

First Question (Outer layer of the eye):

The outer layer of the eye has two main parts: the sclera (the white, tough outer layer) and the cornea (the clear front part). But the sclera is the main outer fibrous layer. The retina is inner (light - sensing), choroid is middle (vascular). So the outer layer's main part here is sclera.

Lacrimal glands are responsible for secreting tears. Conjunctiva is a membrane, sclera is outer eye layer, choroid is middle eye layer. So tears are secreted by lacrimal glands.

Answer:

The outer layer of the eye is the sclera. (Option: sclera)

Second Question (Tears secretion):