Which part of the retina has a higher concentration of cones than rods?
A. Macula lutea
B. Optic disc
C. Fovea centralis
D. None of these answers are correct.
Answer: A
You might also like to view...
A hormone that can lower blood levels of calcium ion is
A) parathyroid hormone. B) thyroxine. C) calcitonin. D) glucagon. E) oxytocin.
The term metabolism is best defined as ________
A) a measure of carbohydrate utilization, typically involving measurement of calories B) the number of calories it takes to keep from shivering on a cold day C) the sum of all biochemical reactions in the body D) the length of time it takes to digest and absorb fats
The function of the pericardial fluid is to
A) store calcium for the heart. B) provide oxygen to the heart. C) provide fuel to the heart. D) remove waste products from the heart. E) reduce friction between the heart and the pericardium.
One reason for the increased incidence of cancer with aging is a decrease in
A. urine output. B. cardiac output. C. red blood cells. D. functioning of T lymphocytes. E. functioning neutrophils.