Clint is 82 years of age. Compared to when he was 27 years of age, his ________ now.
A. kidney cells don't function as well
B. stomach secretes more intrinsic factor
C. body synthesizes more vitamin D
D. cells require more energy
Answer: A
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The body regulates its potassium content by
A. storing more or less potassium in the bone. B. excreting more or less potassium in the urine. C. absorbing more or less potassium from the gastrointestinal tract. D. storing more or less potassium in the liver.
Which of the following is true of the work of Gregor Mendel?
A. He was the pioneer of the Human Genome Project. B. He described the double-helical structure of DNA. C. He discovered the laws of genetics in the year 1865. D. He discovered that DNA is the genetic material in living beings. E. He proposed the concept of the genetic code.
Which of the following is a feature of calcium nutrition in pregnancy?
a. The RDA increases by over 100%. b. Calcium absorption increases substantially. c. Supplements are required for most women due to the increased needs. d. Transfer of calcium from maternal stores to the fetus increases rapidly at the beginning of the second trimester and falls during the last trimester. e. During the last trimester, about 500 mg of calcium are transferred from the mother to the fetus each day.
How can the problems of food insecurity, hunger, and malnutrition be alleviated in the United States?