An organ system is
A. a structure composed of several tissue types.
B. the basic structural unit of all living organisms.
C. a group of organs with a common set of functions.
D. a group of cells with similar structure and function.
E. a small structure within a cell.
Answer: C
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If an element is composed of atoms with an atomic number of 6 and a mass number of 14, then a non-isotopic atom of this element contains
A) 6 protons. B) 8 electrons. C) 8 neutrons. D) 6 protons and 8 electrons. E) 6 protons and 8 neurons.
________________________________________ blood cells move into the lungs to fight a pneumonia infection
Fill in the blank(s) with correct word
The ____________________ is the liquid that bathes cells
Fill in the blank(s) with correct word
The condition acute respiratory distress syndrome (ARDS) is characterized by damage to the respiratory membrane that causes it to thicken. What effect will this thickening have on the pulmonary gas exchange?
a) It would increase external gas exchange because thickness would increase surface area-to-volume ratio. b) There will be a decrease in internal gas exchange. c) The thickness of the respiratory membrane will decrease the rate at which external gas exchange can occur. d) There would be a decrease in oxygen gas exchange and increase in carbon dioxide gas exchange.