Microtubules and microfilaments compose the ________, which forms an internal network of support for the cell
Fill in the blank(s) with correct word
cytoskeleton
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During attachment of phage to E. coli, the phage
A. actively seek out the bacteria. B. randomly bump into the bacteria. C. attach to proteins or carbohydrates on the bacterial surface. D. attach to the bacterial RNA. E. randomly bump into the bacteria AND attach to proteins or carbohydrates on the bacterial surface.
Which of the following events probably made the evolution of cellular respiration possible?
a. Accumulation of carbon dioxide in atmosphere d. Emergence of eukaryotes b. Emergence of prokaryotes e. Emergence of plants c. Accumulation of oxygen in atmosphere
Most of earth's fresh water is _____
a. in lakes and streams c. frozen as ice b. in aquifers and soil d. in bodies of organisms.
Hansen's disease is caused by which of the following?
A. Mycobacterium tuberculosis B. Mycobacterium bovis C. Mycobacterium avium D. Mycobacterium leprae