The round opening in the iris that allows light rays to enter the eye is the ________
A) retina
B) iris
C) pupil
D) sclera
C
Explanation: A) The retina is not a round opening.
B) The iris is a colored ring, not a round opening.
C) Correct!
D) The sclera is a white layer, not a round opening.
You might also like to view...
Hepatitis C viral infections is the most common reason for kidney transplants
Indicate whether the statement is true or false.
Which of the following statements regarding ventilation-perfusion scans is NOT true?
a. It is a nuclear medicine image. b. Radioactive dye is injected into the bloodstream. c. It is particularly useful in diagnosing pneumonia. d. Radioactive tagged air is inhaled.
In the ratio and proportion method, the ratio between the dose on hand and the known quantity is equal to the ratio between the desired dose and the ____
A) unknown dose B) unknown measure C) unknown quantity D) unknown unit
Side effects of birth control pills include all of the following EXCEPT:
A. headaches. B. blood clots. C. high blood pressure. D. blindness.