Characteristics of an ideal antimicrobial include that it
A) is broadly toxic.
B) is microbicidal.
C) is allergenic.
D) leads to antimicrobial resistance.
Ans: B) is microbicidal.
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A common method for cultivating viruses in the lab is to use in vitro systems called ________ cultures.
A. plaque B. embryo C. bacteriophage D. cell E. egg
Prions are created when normal proteins in the body ____
a. combine with large ribosomal subunit and become infectious b. exchange several long sections of amino acids with other infected proteins c. refold into a different and infectious three-dimensional shape that kills cells in the brain and nervous system d. undergo mutation and create hundreds of copies of themselves e. invade the immune system, causing it to mistakenly destroy the body's healthy tissue
Perhaps the greatest asset possessed by early
hominids was a. their use of many different kinds of foods. b. the ability to walk without using the forelimbs. c. a heavy, muscular build. d. the ability to reason and learn. e. less hair on the body.
In marine and freshwater environments, the penetration of sunlight and the mixing of nutrients, oxygen, and waste products are the dominant factors controlling the microbial community.
Answer the following statement true (T) or false (F)