Which of the following are phagocytic cells descended from monocytes?
A) alveolar macrophages
B) dendritic cells
C) microglial cells
D) alveolar macrophages and dendritic cells
E) alveolar macrophages and microglial cells
E
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Most vertebrates maintain homeostasis in regard to the total solute concentrations of their extracellular fluids and the concentrations of specific inorganic ions. The kidneys participate in regulating the extracellular fluid concentration of all ions below except
A. Ca2+ ions. B. Na+ ions. C. K+ ions. D. Fe2+ ions. E. Cl- ions.
Prion diseases are always fatal and there is no treatment
a. True b. False Indicate whether the statement is true or false
Heavy cigarette smoking and the use of alcohol throughout pregnancy usually increase the likelihood of
A. the birth of twins B. the birth of a male baby C. a baby being born with a viral infection D. a baby being born with medical problems
Which of the following is not a phenotypic trait of bacteria?
A. Nutrient requirements B. Biochemical reactions C. Cell shape D. rRNA sequence