The paired erectile bodies in the penis are the
A) membranous urethra.
B) penile urethra.
C) corpus spongiosum.
D) corpora cavernosa.
E) foreskin.
D
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The organ system that transports and filters interstitial fluid while also participating in immune responses is the ________ system.
Fill in the blank(s) with the appropriate word(s).
The _____________ contain(s) baroreceptors.
A. subclavian arteries B. common carotid arteries C. external carotid arteries D. internal carotid arteries E. cerebral arterial circle (circle of Willis)
Allowing small children to be exposed to some dirt is one way of imparting
A) naturally acquired active immunity. B) artificially induced active immunity. C) innate (nonspecific) immunity. D) naturally acquired passive immunity. E) artificially induced passive immunity.
The digestive enzymes tested in the laboratory function best at this temperature
A) 98°C B) 0°C C) 37°C D) 50°C