A flexible, spiral-shaped bacterium is called a

A) spirochete.
B) vibrio.
C) coccobacillus.
D) spirillum.
E) sarcina.


A

Biology & Microbiology

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What is bioprospecting?

A. An exploration of nature in the search for potentially useful organisms or their products.  B. A search for unknown organisms that may become serious pathogens to humans.  C. A search for unknown organisms that may become serious pathogens to farm animals.  D. Use of microorganisms to locate and extract valuable minerals from deep underground. 

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Rubulavirus falls under which group of the ICTV nomenclature system?

A. Subfamily B. Order C. Family D. Genus

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What is the difference between Ras and the G proteins bound to G protein-coupled receptors (GPCRs)?

A. Ras is a second messenger, and the G proteins bound to GPCRs are not second messengers. B. Ras is an enzyme, and the G proteins bound to GPCRs are not enzymes. C. Ras can activate different effector molecules, and the G proteins bound to GPCRs cannot activate different effector molecules. D. Ras is a small G protein, and the G proteins bound to GPCRs are not small G proteins.

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Which of these lines represents the pattern of change in mass over that time?

A) A B) B C) C

Biology & Microbiology