In performing a Ziehl-Neelsen's staining techniques, the counterstain is
A. Carbolfuchsin
B. Methylene blue
C. Malachite green
D. Crystal violet
E. Safranin
Ans: B. Methylene blue
Biology & Microbiology
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Answer the question using the accompanying figure. At which point in this action potential diagram does the onset of
Na+ channel inactivation stop the inward flow of Na+?
a. A b. B
c. C d. D e. E
Biology & Microbiology
Which cells of the pancreas produce glucagon?
a. alpha cells b. beta cells c. delta cells d. F cells e. gamma cells
Biology & Microbiology
________ are mammals that lay eggs
Fill in the blank(s) with correct word
Biology & Microbiology
Specificity and memory are associated with which body defense mechanism?
A. Phagocytosis by macrophages and neutrophils B. T-cell and B-cell responses C. Interferon D. Anatomical barriers in the body E. Inflammatory response
Biology & Microbiology