Hemagglutination is ________.
A. the binding of iron in the process of a viral suspension
B. the clumping together of red blood cells in the presence of a viral suspension
C. the clumping together of infected cells in the presence of a viral suspension
D. None of the choices are correct.
Answer: B
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The use of plastic film to wrap meat products can result in increased surface growth of microorganisms in part because of exposure to
A. carbon dioxide. B. water. C. oxygen. D. N2, which comprises approximately 78% of gas in the atmosphere.
Which of the following is NOT a logical hierarchy of biological organization?
a. cells, tissues, organs, organ systems, organisms b. family, order, class, phylum, kingdom c. cells, molecules, organelles, tissues, systems d. molecules, cells, tissues, organ systems, populations e. organisms, populations, communities, ecosystems, biosphere
A source for alginic acid, a thickening, emulsifying agent found in ice cream, toothpaste, pudding and cosmetics, are the:
a. seed plants b. ferns c. brown algae d. red algae e. green algae
Every type of chemical bond contains a certain amount of energy. The total bond energy, which is essentially
equivalent to the total potential energy of the system, is a quantity known as: a. entropy. b. enthalpy. c. free energy. d. kinetic energy. e. thermodynamic energy.