Which of the following are the smallest venous vessels?
A) large veins
B) venules
C) medium veins
D) capillaries
E) venous valves
Answer: B
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Match each level of protein structure with its description.
1. applies to proteins containing more than one peptide chain 2. the sequence and number of amino acids in the chain 3. the three-dimensional shape of an amino acid chain; can be fibrous or globular 4. the spatial arrangement of amino acids; can be a helix or a pleated sheet A. primary B. secondary C. tertiary D. quaternary
Differences between skeletal muscle cells and typical cells include which of the following?
A) Skeletal muscle cells are larger than normal cells. B) Skeletal muscle cells are multinucleate. C) Skeletal muscle cells have one nucleus and typical cells have more than one. D) both A and B E) both A and C
As sodium is reabsorbed actively, which of the following is absorbed passively?
a. Ca2+ b. PO43- c. Cl- d. Na+ e. K+
Describe a person in anatomical position.
What will be an ideal response?