The secretion of the seminal vesicles contains ________, which forms a temporary semen clot within the vagina after ejaculation.
A) fructose
B) prostaglandin
C) fibrinogen
D) seminalplasmin
E) urine
C) fibrinogen
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The structure that separates the cochlear duct from the scala tympani is the
A) tectorial membrane. B) basilar membrane. C) vestibular duct. D) organ of Corti. E) malleus.
Fresh water vertebrates
a. are hyper-osmotic regulators. b. produce large volumes of hypotonic urine. c. maintain lower internal osmolarities in order to minimize water intake. d. are adapted to take in ions of sodium, chlorine and calcium by means of gills, chloride cells and moist skin. e. all these.
Which condition is characterized by rapid, uncoordinated contraction of cardiomyocytes?
A. Fibrillation B. Endocarditis C. Myocardial infarction D. Cardiac tamponade E. Congestive heart failure