Lymphocytes provide an adaptive or specific defense known as the
A) phagocytic response.
B) adaptive defense.
C) immune response.
D) lymphocytic response.
E) inflammation of tissues.
Answer: C) immune response.
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When an enzyme reaches its saturation point,
A) the amount of substrate for the enzyme to act upon is very low. B) the amount of substrate for the enzyme to act upon is very low and the amount of product produced by the enzyme decreases. C) the amount of substrate for the enzyme to act upon is very high. D) the amount of product produced by the enzyme decreases. E) the amount of product produced continues to increase.
Most of the progeny of an activated B-cell clone differentiate into ____________________ cells, which produce antibodies, and ____________________ cells, which remain dormant and expand the specific clone
Fill in the blank(s) with correct word
If peripheral chemoreceptors detect low PO2, the effect or response will be __________.
a) decreased blood pH b) hypoventilation c) hyperventilation d) increased PCO2
The multiple nuclei in skeletal muscle cells are the result of the
A. action of testosterone on mesenchyme cell. B. fusion of myoblasts. C. cytokinesis of embryonic satellite cells. D. stimulation of fibroblasts by hormones. E. spontaneous development of nuclei in embryonic cells.