Mr. Jones has Type A blood and needs a transfusion. What type(s) could he safely be given?
A. Type A only
B. Type A or Type O
C. Type O only
D. Type A or Type AB
Answer: B
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If a neurotransmitter hyperpolarizes a cell membrane and an action potential is less likely, the change is called ________ potential.
What will be an ideal response?
Adipose tissue acts as an endocrine tissue, playing roles related to
A) Inflammation. B) Blood clotting and blood pressure. C) Dietary status. D) All of the above
Before the discovery of these glands, thyroid surgery often led to a rapid drop in blood calcium levels, which triggered muscle contractions and cardiac arrhythmias. What glands are these and which hormone is lacking?
A) thyroid glands; calcitonin B) parathyroid glands; calcitonin C) parathyroid glands; parathyroid hormone D) thyroid glands; levothyroxine E) parathyroid glands; levothyroxine
Which of the following events occurs because of the low pH of the stomach?
A. activation of salivary amylase B. enhanced carbohydrate digestion C. proper environment for functioning of pepsin D. protein synthesis E. lipid digestion