Which type of cancer constitutes the highest percentage of new cases in men?
a. prostate
b. skin
c. leukemia
d. lung
e. colon
a
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The thirst center in the hypothalamus is stimulated when __________.
a. blood sugar level goes up b. osmolality of blood decreases c. osmolality of blood increases d. urine becomes too concentrated
Jody is taking a nutrition class, and has been assigned to evaluate a popular diet plan. She finds a description of a plan for her assignment in a magazine at the grocery store. Which of the following statements in the magazine would suggest that this plan is an unsound, fad diet?
a. "On this plan, you can lose up to 2 pounds per week!" b. "Once you complete this 6-month plan, you'll never have to diet again." c. "Keep fresh fruit or carrot sticks in the fridge at work so you won't be tempted to raid the vending machine for a snack." d. "Starting an aerobic exercise plan may seem daunting, but you can start out with shorter, easier sessions and then build up to 3 or more hours a week."
One of the reasons why acid-base balance is so important for the body is that:
a. highly acidic conditions cause vital proteins to denature. b. highly acidic conditions cause the destruction of certain fatty acids. c. acid-base imbalances contribute to the destruction of hormones. d. acid-base imbalances compromise growth in children.
Of all the roles proteins play in the body, which role has the highest priority?
a. Hormone b. Energy c. Transport d. Antibodies