What are the major chemical buffer systems of the body?
A) The bicarbonate, phosphate, and nitrate
B) The bicarbonate, phosphate, and protein
C) The bicarbonate, nucleic acids, and protein
D) The urinary and digestive
E) The urinary and respiratory
B
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Which would most directly decrease the production of aldosterone?
A. Ingesting extra dietary vitamin D B. Injecting a drug that blocks the production of angiotensin II C. Increasing dietary cholesterol D. Going on a low-salt diet E. Reducing dietary tyrosine
Which cells are commonly found wedged between simple columnar epithelial cells?
A) goblet cells B) mast cells C) macrophages D) cilia
The most common cause of hyperthyroidism is __________
Fill in the blank(s) with correct word
Which of the following is the most important role of meiosis in sexual reproduction?
A. It changes the genetic composition of each chromosome. B. It produces at least one gamete that is mobile. C. It ensures that each daughter cell doubles the number of chromosomes. D. It prevents the chromosome number from doubling in each generation. E. It reduces the size of the gametes.