Which of the following is the most difficult to inactivate?

A. enveloped viruses
B. fungus spores
C. bacterial endospores
D. nonenveloped viruses
E. protozoan cysts


Answer: C

Biology & Microbiology

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A nucleosome is a structure associated with the nuclear membrane. It helps maintain a stable relationship between the extracellular matrix and the membrane itself

Indicate whether the statement is true or false

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Cells get their energy from the ________ of molecules, such as ATP, that store energy

Fill in the blank(s) with correct word

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Which of the following bacterial components would most likely result in B cell stimulation by T-independent antigens?

A) capsule B) flagellum C) pili D) ribosome E) plasmid

Biology & Microbiology