The cell wall component algin is
(a) found in the brown algae.
(b) used in the production of ice cream.
(c) used as a medium on which microorganisms are grown.
(d) both a and b.
(d) both a and b.
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The process by which microorganisms cause diseases is known as
A) pathogenesis. B) virulence. C) LD50 (lethal dose50). D) infection.
The branches of the trachea that enter each lung are the ____
a. pharynx b. vocal cords c. bronchi d. larynx e. epiglottis
Karl Popper suggested that scientists use "imaginative preconception," which means that successful scientists:
A. cannot predict the outcome of experiments. B. only perform applied research. C. often predict the outcome of experiments. D. do not need to do experiments to test their ideas. E. do not keep records of experiments that fail.
The salivary glands that become infected by the mumps virus are located
What will be an ideal response?