B lymphocytes
a. are responsible for antibody-mediated immunity
b. are activated by thymosin
c. mature and differentiate into macrophages
d. bind with foreign antigen in association with self-antigen
e. are attacked by AIDS virus
A
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The __________ vena cava carries blood from the shoulders, head, and neck to the right atrium.
Fill in the blank(s) with the appropriate word(s).
The thyroid gland curves across the anterior surface of the trachea just inferior to the __________.
a. scapula and clavicles b. thyroid cartilage c. sternum d. dorsal ascending aorta
A sebaceous (oil) gland cell of the skin must completely rupture to release its secretory products. Thus, this type of gland is considered to be a __________.
Fill in the blank(s) with correct word
Posteriorly the right and left pelvis are joined together by the _____________.
Fill in the blank(s) with the appropriate word(s).