What is another name for the membrane that surrounds the central vacuole?
a. tonoplast
b. ionoplast
c. chloroplast
d. chromoplast
Ans: a. tonoplast
Biology & Microbiology
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HIV is transmitted in ____
a. food b. water c. body fluids d. air e. infected surfaces
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In Griffith’s experiments, what made the harmless R cells grow capsules when exposed to heat-killed S cells?
a. Protein b. DNA c. Lipids d. Polysaccharides
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In the tropical deciduous forest, the amount of ________ defines the seasons
Fill in the blank(s) with correct word
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Koch's postulates are an example of
A) retrospective epidemiology B) descriptive epidemiology C) prospective epidemiology D) experimental epidemiology
Biology & Microbiology