Select the correct statement about active and passive immunity
A) Active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies.
B) Immunological memory is established by passive immunization.
C) The antibodies utilized in active immunity are acquired from another organism.
D) A vaccination is an example of the introduction of passive immunity into the body.
A
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Urine concentration and volume depend on water reabsorption in the ________.
A. ascending loop of Henle B. distal convoluted tubule only C. descending loop of Henle D. proximal convoluted tubule E. distal convoluted tubule and collecting ducts
Which structure will sometimes disappear in adults?
A) Spleen B) Sinus C) Thymus D) Pancreas
Connective tissue is separated into subgroups based on the
A. structure of the extracellular matrix. B. protein types. C. shape of the cells. D. cell number. E. number of cell layers.
Which structure is not found in both males and females?
A. Corpora cavernosa B. Vestibular gland C. Tunica albuginea D. Prepuce E. Glans