________ is a type of indigestible polysaccharide
A) Glycogen
B) Starch
C) Cellulose
D) Sucrose
E) Galactose
C
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Surgical cutting of the perineum during delivery is called
A) vasectomy. B) episiotomy. C) vagectomy. D) tubal ligation. E) None of the answers are correct.
More than one sperm is prevented from fertilizing an egg by all of the following mechanisms except:
A. Opening sodium channels in the plasma membrane causes a change in the electrical charge of the membrane. B. Secretion of material from cortical granules pushes sperm away from the already fertilized egg. C. A slow block to polyspermy occurs. D. A fast block to polyspermy occurs. E. Meiosis II is completed by the egg.
MHC class I molecules present peptide fragments that are either "self" or "nonself"; in either case, the fragment becomes bound to the molecule while
A. in the rough endoplasmic reticulum. B. in the cytosol. C. in a secretory vesicle. D. in the Golgi apparatus.
Projection tracts
A. connect different regions within a lobe. B. connect a region of one lobe with another lobe in the same hemisphere. C. connect different regions of the cerebral cortex within the same hemisphere. D. link the cerebral cortex to the caudal brain regions and the spinal cord. E. extend between the right and left cerebral hemispheres.