The discrepancy between the number of microbial cells observed by microscopic examination and the number of colonies that can be cultivated from the same natural sample may be due to ________.
A. microbial motility
B. incorrect culture conditions
C. nonviable organisms
D. nonviable organisms and incorrect culture conditions
Answer: D
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Any deviation in normal gene dosage is lethal
A. true B. false
The condition of having no sperm in the semen is called ____________________
Fill in the blank(s) with correct word
Which of the following is a possible consequence of self reactive B cells and/or T cells in the body?
A. Cytokine storms B. Autoimmune diseases C. Anergy D. Allergic reactions
Which of the following describes a disadvantage of nuclear energy, especially compared to other alternative energy sources?
A. Nuclear energy does not actually produce much energy. B. Nuclear energy is not always safe because of the radioactivity involved. C. Nuclear energy is not feasible on a large scale and tends to be more efficient for powering individual homes. D. Nuclear energy releases large amounts of carbon dioxide into the atmosphere.