You are examining a bacterial smear on a light microscope. You observe pinkish-red bacilli and blue cells of various shapes. You are probably looking at a smear prepared with the ________ stain.
A. Gram
B. Ziehl-Neelsen acid-fast
C. Schaffer-Fulton endospore
D. Gomori methenamine
E. Hematoxylin and eosin
Answer: B
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Which of the following is not an example of symbiotic nitrogen fixation?
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Why is the productivity poor in the deeper parts of the ocean?
What will be an ideal response?
Some bones have __________ that makes blood
cells. Fill in the blank(s) with the appropriate word(s).
Based on the colligative properties of water, what would happen if one were to add a solute to water?
A. The freezing point of water would increase. B. Nothing would change with respect to the freezing point or boiling point of water. C. The freezing point of water would decrease. D. The boiling point of water would increase. E. Both the freezing point of water would decrease and the boiling point of water would increase.