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★ Eye and Ear Quiz
The amount of light entering the eye is regulated by th
A. lens
B. iris
C. retina
D. optic nerve
E. feature detectors
Select your answer:
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Musculoskeletal System › ViewA muscle strain is an example of:
A. An acute injury
B. A chronic injury
C. An overuse injury
D. A direct injury
Lungs › View
Which part of the blood transports oxygen to the body’s tissues in exchange for carbon dioxide.
A. White Blood Cells
B. Red Blood Cells
C. Platelets
D. Plasma