A chemical bond formed by the sharing of electrons is described as a(n)
A) coordinate bond
B) mixture
C) ionic bond
D) covalent bond
Ans: D) covalent bond
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The genetic code is
A. the correspondence between a specific amino acid and a specific gene. B. the correspondence between a DNA nucleotide and an RNA nucleotide. C. the correspondence between a gene and a genome. D. the correspondence between a sequence of three DNA nucleotides and a specific amino acid.
Which tract transmits conscious sensory impulse regarding pain and temperature?
a. dorsal cerebellar b. ventral spinothalamic c. lateral spinothalamic d. lateral corticospinal e. rubrospinal
Heat-releasing mechanisms include which of the following?
A) vasodilation and sweating B) sweating C) vasodilation D) vasoconstriction and sweating E) vasoconstriction
Which of the following serves as a nucleus in the midbrain that is involved in maintaining muscle tone and coordinating movements?
A) inferior olivary nucleus B) cerebral peduncles C) substantia nigra D) suprachiasmatic nucleus