A genetic mutation stops T cells and macrophages from producing cytokines. Which of the following immune compounds will not be produced?
A. Antibodies and antigens
B. Autoantibodies and immunosuppressants
C. Colony stimulating factors, interferons, interleukins, tumor necrosis factor
D. Histamine and leukotrienes
Answer: C
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The pyloric glands of the stomach release hydrochloric acid and other digestive juices during digestion. These glands have very short ducts and the tubes are branched. These glands are ________.
A. simple branched tubular B. simple branched alveolar C. simple coiled tubular D. unicellular
Glial cells of the brain are remarkable for their ability to avoid exploding when they are placed in distilled water. This ability comes in part as a consequence of activating ion transport mechanisms that enable them to control cell volume. This activity is an example of
a. self-organization. b. self-regulation. c. self-support (structural) and movement. d. self-replication. e. all of these.
The inhaled air enters each lung lobe through a ________.
A. segmental bronchus B. lobar bronchus C. bronchiole D. main bronchus
Which disorder is characterized by a low platelet count?
A. Thrombocytopenia B. Hemophilia C. Polycythemia D. Anemia