Which of these factors is NOT used in classifying viruses?

A. Disease symptoms
B. Host range
C. Morphology
D. Genome


Answer: A. Disease symptoms

Biology & Microbiology

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When elemental sulfur is provided externally as an electron donor, the organism must attach itself to the sulfur particle because of the extreme insolubility of elemental sulfur

Indicate whether the statement is true or false.

Biology & Microbiology

Suspension filter feeding animals capture food particles that are:

A. floating in the water around them. B. laying on the surface of the sea floor. C. attached to rocks or other hard surfaces. D. buried within the sediments. E. All of the answer options are correct.

Biology & Microbiology

All nucleated cells contain

A. IgE receptors. B. class II MHC. C. class I MHC. D. IgD receptors. E. secretory antibodies.

Biology & Microbiology

The chemical reaction in the accompanying figure occurs in the:a

stomach as the result of secretions from the pancreas. b. small intestine as the result of secretions from the pancreas. c. large intestine as the result of secretions from the small intestine. d. stomach as the result of secretions from the stomach. e. small intestine as the result of secretions from the liver. What will be an ideal response?

Biology & Microbiology