The time required to kill 90% of the microorganisms or spores in a sample at a specified temperature is the ________.
A. decimal reduction time (D value)
B. z value
C. thermal death time (TDT)
D. thermal death point (TDP)
Answer: A
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A molecule with the chemical formula C6H12O6 is probably a _____
A) fatty acid B) polysaccharide C) phospholipid D) nucleic acid E) monosaccharide
Asexual reproduction in plants results in:
A. increased genetic diversity. B. offspring that are genetically different from the parent(s). C. offspring that are genetically different from each other. D. offspring that are genetically identical to the parent. E. no production of offspring.
The ability of cells to control their level of gene expression is called
A. gene transformation. B. gene regulation. C. gene splicing. D. gene addition. E. gene correction.
Entamoeba histolytica feeds on ________.
A. yeasts B. bacteria C. erythrocytes D. All of the choices are correct.