Which of the following substances functions in the body's inflammatory response to prevent blood clots, regulate body temperature, and open airways to the lungs?
A) carotenoids
B) prostaglandins
C) leukotrienes
D) melatonin
B
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The pilomotor response causes
a. your hair to "stand on end." b. your muscles to shiver. c. hunger. d. thirst. e. an increase in heart rate.
Which of the following statements about the nucleus is not true?
A. The nucleus usually contains a nucleolus region which is where ribosome assembly begins B. The nucleus is the site of protein assembly C. The nucleus stores the coded instructions for making the cell's proteins D. The nucleus is surrounded by a nuclear envelope that lets materials in and out
________ is contained in pancreatic juice to neutralize the acidity of chyme from the stomach.
A. Sodium bicarbonate B. Pancreatic amylase C. Trypsin D. Bile
Under ideal conditions, the prokaryotic cell cycle can
A) occur in less than a half an hour. B) create more than two daughter cells per cell division. C) involve sexual reproduction. D) skip prokaryotic fission.