Which of the following is true as exercise intensity increases?
a. At a certain point aerobic metabolism is shut off and anaerobic metabolism is turned on.
b. When the anaerobic threshold is reached muscles stop getting oxygen and suddenly begin producing lactate, which can be measured in the blood.
c. There is a point in ultraendurance activities where fat metabolism stops completely and protein metabolism supplies nearly all of the energy.
d. Energy is supplied in a smooth continuum where one system may predominate depending upon the intensity.
d
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Osteoporosis can be prevented by all of the following except:
a. diets high in calcium b. diets adequate in vitamin D c. exercise d. alcohol consumption
Generally, the bioavailability of phosphorus from plant-based foods is higher than that of animal-based foods
Indicate whether the statement is true or false
All of the following are examples of FDA-approved nutrient claims EXCEPT:
a. "improves circulation" if the food has 140 milligrams or less of sodium. b. "fat free" if the food has less than 0.5 grams of fat. c. "good source" if the food has 20% or more of the DV for a particular nutrient. d. "high fiber" to refer to a food with 30% of the DV for fiber.
Another term for fixed budgets is: a. accounting budgets
b. static budgets. c. refined budgets. d. flexible budgets.