Examlex
What is the relevance of the marginal productivity principle in explaining the use of inputs in production?
Opsin
A light-sensitive protein found in photoreceptor cells of the retina that plays a crucial role in the biochemistry of vision.
Ciliary Muscles
A ring of smooth muscle fibers in the eye that changes the shape of the lens to focus on near or distant objects.
Lens
A transparent structure in the eye that focuses light rays onto the retina, enabling vision.
Suspensory Ligaments
Fibrous tissues that connect the lens of the eye to the ciliary body, aiding in the adjustment of lens shape for focusing.
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