Which of the following describes the primary function of the respiratory system?
A) To create sound and speech
B) To take oxygen into the body while removing carbon dioxide
C) To transport nutrients to the cells and tissue of the body
D) To act as a barrier between the body's organs and outside influences
Answer: B) To take oxygen into the body while removing carbon dioxide
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MHC class I molecules present peptide fragments that are either "self" or "nonself"; in either case, the fragment becomes bound to the molecule while
A. in the Golgi apparatus. B. in the cytosol. C. in a secretory vesicle. D. in the rough endoplasmic reticulum.
The PGA is directly inhibited from releasing gastrin by a high concentration of _____________ ions in the stomach
Fill in the blank(s) with correct word
Which of the following is contraindicated for lymphatic drainage?
a. Simple edema. b. Low blood pressure. c. High blood pressure. d. Traveler's edema.
Which of the following is not a system of intake and output?
A. Digestive system B. Respiratory system C. Urinary system D. Muscular system