Osteoporosis is characterized by ________.
A. defective collagen production
B. keratinization and death of epithelial cells
C. immature red blood cells that lack hemoglobin
D. loss of bone mass and structure
Answer: D
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The tolerable upper limits are a maximum level of daily intake that is recommended.
Indicate whether the statement is true or false
Which of the following has been associated with an increased risk for cancer?
A) a diet high in saturated fats and low in fruits and vegetables B) a diet high in omega-3 fatty acids C) excessive caffeine consumption D) use of fluoridated water
The _______________ colon ends in the rectum where another sphincter (the anal sphincter) controls voluntary release of intestinal contents.
Fill in the blank(s) with the appropriate word(s).
In chemistry class, Karl combines hydrochloric acid with a base called sodium hydroxide. This chemical reaction results in the formation of a ________.
A. proton B. salt C. tissue D. buffer