Antibodies are produced by____
a. T lymphocytes
b. B lymphocytes
c. macrophages
d. monocytes
b
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The embryonic feature that gives rise to the anterior and lateral horns of gray matter and part of the gray commissure is the ________ plate.
A. posterior B. ulnar C. basal D. anterior E. alar
A reflex occurs without conscious thought
Indicate whether the statement is true or false
In the metric system, a liter (L) is a unit that measures
A. time. B. temperature. C. mass. D. length. E. volume.
Which is NOT true about a binding site on a protein?
A. It is an area of the protein with a shape complementary to that of a ligand. B. It is determined by the amino acid sequence of the protein. C. The binding of a ligand to a binding site typically changes the conformation of the protein. D. There can only be one binding site on a given protein. E. Binding of a ligand to the binding site typically activates or inactivates a protein's specific function.