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1. The innermost layer of the eye is the:

Select one:
A. retina.
B. choroid.
C. vitreous humor.
D. macula.

2. Which structure separates the external ear from the middle ear?

Select one:
A. Ossicles
B. Auditory canal
C. Tympanic membrane
D. Pinna


Sagot :

Final answer:

The retina is the innermost layer of the eye responsible for photoreception, while the tympanic membrane separates the external ear from the middle ear.


Explanation:

The innermost layer of the eye is the retina. It is responsible for photoreception and contains layers of cells critical for processing visual information.

The structure that separates the external ear from the middle ear is the tympanic membrane. This membrane, also known as the eardrum, vibrates in response to sound waves and transmits them to the middle ear.


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