Examlex
Productivity in temperate oceans is determined by ________.
Snellen Test
An eye examination test that measures visual acuity using a chart of letters or symbols of steadily decreasing size.
Sclera
The white outer layer of the eyeball, providing structural support and protection for the eye.
Choroid
A vascular layer of the eye located between the sclera and the retina, which provides oxygen and nutrients to the outer retina.
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