Which muscle(s) that regulate(s) micturition is/are under involuntary control?
A) detrusor and the external urethral sphincter
B) external urethral sphincter
C) internal urethral sphincter
D) detrusor and the internal urethral sphincter
E) detrusor
Answer: D) detrusor and the internal urethral sphincter
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The salivary glands under the tongue are called the
A) submandibular glands B) sublingual glands C) parotid glands D) submaxillary glands
What evidence lends support to the hypothesis that in a species, males generally have lower immunotolerance than females?
A) Males die younger. B) When males are treated with testosterone implants, a decrease in immunotolerance is observed. C) When males are treated with cholesterol implants, an increase in immunotolerance is observed. D) The slower the maturity rate, the lower the immunotolerance.
Gas emboli may occur because a ________.
A) person holds his breath too long B) diver holds his breath upon ascent C) pilot holds her breath upon descent D) person breathes pure oxygen in a pressurized chamber
A dominant allele is best defined as ________
A) the healthy allele sometimes referred to as the wild type allele B) the allele that is most frequently expressed in a given population C) the stronger of two matched alleles D) an allele that stops or hides the expression of the other allele