A pyometra is an accumulation of:
A) pus in the gastrointestinal tract
B) fluid in the gastrointestinal tract
C) pus in the thorax
D) pus in the uterus
E) fluid in the thorax
D
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The nerve supply to the genitalia is the:
a. ilioguinal nerve b. genitofemoral nerve c. pudendal nerve d. all of the above
A protein consists of
A. an amine group, a carboxyl group, and an R group. ?B. more than 200 amino acids.? C. between 3 and 20 amino acids.? D. a C-terminal, several nucleic acids, and an N-terminal
Which of the following provides a first line of defense against pathogens?
a. complement b. intact skin and mucous membranes c. antimicrobial proteins d. inflammation
Carbon-12 (12C) is the most common form of the element carbon. How is the isotope carbon-13 (13C) similar to and different from 12C?
A) Isotope 13C has the same chemical properties but has one more electron than 12C. B) Isotope 13C has the same chemical properties but has one more proton than 12C. C) Isotope 13C has the same chemical properties but has one more neutron than 12C. D) Isotope 13C has different chemical properties and has one more electron and one more proton than 12C. E) Isotope 13C has different chemical properties and has one more electron than 12C.