All of the following are true regarding growth spurts EXCEPT:
1.teenagers gain approximately 50% of their adult weight.
2.teenagers gain approximately 20 to 25% of adult height.
3.girls gain on average 18 pounds, and boys, 20 pounds.
4.teenagers gain 90% of their total bone mass.
4
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Which factor currently accounts for 80% of the increase in life expectancy of people aged 65 years and older?
a. improved diet b. improved housing c. safe water d. lower levels of stress e. advances in medicine
Sugar acts as a food preservative by
A. reducing the amount of free water in food. B. increasing the acidity of food. C. directly killing disease-producing microbes. D. increasing the water activity of the food.
The human body needs vitamin K to ________.
A. release the energy stored in glucose B. form active blood clotting factors C. synthesize DNA D. absorb phosphorus from foods
What is a common risk factor for the development of prediabetes?
a. pear-shaped body b. high blood pressure c. elevated cholesterol levels d. genetic predisposition e. fatty liver disease