The part of the brain that deals with the basic drives such as hunger and thirst is the
a. cerebrum.
b. pons.
c. cerebellum.
d. thalamus.
e. hypothalamus.
E
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The following amino acid would be characterized as ____ based on the chemical properties of its side chain
a. basic
b. acidic
c. nonpolar
d. hydrophilic
e. electrically charged
The California populations of the Northern elephant seal are descendants from a very small population of seals that was overhunted in the 1890s. Heterozygosity in this population would be expected to be ________ due to ________.
A. great; a bottleneck effect B. slight; a bottleneck effect C. great; assortive mating D. slight; the founder effect E. great; disruptive selection
The disease thrush is caused by
a) Epidermophyton. b) Candida albicans. c) Sporothrix schenckii. d) Microsporum.
Which of the following statements is true about the decolorizing step for the acid-fast stain?
A) Because acid-fast bacteria have a waxy cell wall that resists decolorization by the acetone-alcohol rinse, they appear a deep blue at the end of the procedure. B) Over-decolorizing can lead to false-positive results. C) Acetone-alcohol solution is the decolorizing agent. D) The decolorizing step is the differentiating step. E) Non-acid-fast bacteria appear bright pink-red at the end of the procedure.