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The diagram below shows a mammalian eye.

      

The diagram below shows a mammalian eye.
pic16920191015.png
a) Name the parts labeled R, S and T.
b) Give two adaptations of part labeled U.
c) Describe the changes that occur to part V when one moves from a bright room to a dark room.

  

Answers


sharon
a) R -retina
S- optic nerve
T- ciliary muscles
b) U -Has dark pigments to absorb stray lights and prevent internal reflections within the eyes.
-contains numerous blood vessels that supply nutrients to the eye and remove metabolic wastes from the eyes.
c) The radial muscles of the iris contract and the circular muscles relax; Pupils size (diameter) increases/ enlarges and more light
enters the eye.
sharon kalunda answered the question on September 16, 2019 at 07:17


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