The center for control of motor skills and
posture is the
a. cerebrum.
b. pons.
c. cerebellum.
d. thalamus.
e. hypothalamus.
C
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The following quote is taken from a university extension publication for farmers:
"Grain poisoning, also known as grain overload or lactic acidosis, is usually the result of stock consuming large quantities of grain or pellets to which they are unaccustomed. Pasture-fed cows or feedlot cattle not yet adapted to grain may become acutely ill or die after eating only moderate amounts of grain, whereas stock accustomed to diets high in grain content may consume large amounts of grain with little or no effect." What is happening in the digestive system of the livestock that causes grain poisoning and why does a gradual shift in diet avoid this problem? What will be an ideal response?
A limiting factor for viral infection is
A. internal metabolic temperature of the host cell. B. nutrition of the host cell. C. stage of cell cycle of the host cell. D. presence of specific receptor molecules on the host cell.
Which is a feature of prokaryotic cells but NOT eukaryotic cells?
A) fimbriae B) cell wall C) flagella D) ribosomes
Modern humans have been in existence for approximately how many years?
A) 200,000 B) 100,000 C) 500,000 D) 1,000,000