An excess of this nutrient has been linked to bone loss.
A. Glucose
B. Saturated fat
C. Protein
D. Vitamin A
Answer: D. Vitamin A
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When DNA is distributed diffusely throughout the nucleus, it is called ________. When it is organized into condensed structures, those are called ________.
A. chromatid; chromosomes B. chromosomal; chromatins C. chromatin; chromosomes D. nucleolus; centrioles E. genetic; chromatins
During muscle contraction, the
a. contractile proteins contract. b. contractile proteins shorten c. A band becomes smaller d. I band remains unchanged. e. amount of calcium in the cytosol remains constant
What is NOT true of the effects of hypoventilation?
A) partial pressure of carbon dioxide (PCO2 ) in the blood increases B) blood pH decreases C) hydrogen ion concentration in the blood decreases D) carbonic acid concentration in the blood increases
Cone-shaped tissue masses of the kidney are called renal
A. pelvis. B. pyramids. C. cortex. D. columns.