According to your textbook and the Internet, in what part of the eye are cataracts located?
What will be an ideal response?
A cataract is a gradual clouding of the lens that is associated with aging. The clouding may skew the trajectory of incoming light rays; if the lens becomes totally opaque, light cannot enter the eye at all.
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Which of the following statements does not correctly contrast the female and male reproductive systems?
A. The male reproductive system produces and stores gametes, whereas the female reproductive system only stores gametes. B. The male reproductive system produces gametes from puberty until death of the individual; the female reproductive system normally ceases gamete production during middle age. C. The female reproductive system produces secretions to nourish the neonate; the male reproductive system does not. D. All of the statements are correct.
The first branch off the abdominal descending aorta is the ____________________.
Fill in the blank(s) with the appropriate word(s).
Hormones with short half-lives
A. have concentrations that increase slowly. B. regulate activities of delayed onset and long duration. C. are maintained at relatively constant levels. D. regulate activities of rapid onset and short duration. E. are usually lipid-soluble.
The gallbladder ________.
A. breaks down red blood cells B. is attached to the pancreas C. produces bile D. produces secretin E. stores bile