Cave art by early humans recognized the existence of the major signs of inflammation. The most inclusive set of symptoms of inflammation that might appear in such early human art is _____
A) heat, pain, and redness
B) pain and whitening of the surrounding tissue
C) swelling and pain
D) antibody-producing cells
E) swelling, heat, redness, and pain
Answer: E
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A central vacuole
a. is found only in plant cells. b. may take up between 50% and 90% of the cell's interior. c. regulates water balance. d. is all of the above.
The mononuclear phagocyte system (MPS) is an intricate network throughout the body that comprises
A. connective tissue and monocytes. B. connective tissue fibers, mast cells, and basophils. C. connective tissue fibers and phagocytic white blood cells. D. connective tissue and lymphocytes.
Physician Edward Jenner promoted the use of cowpox, a harmless pathogen related to the dangerous smallpox virus, as a vaccination to provide patients immunity from future smallpox epidemics. This is an example of
A. developing high levels of complement. B. passive immunity. C. developing high levels of interferon although Jenner did not realize these diseases were viral. D. active immunity. E. an inflammatory response that decreased the IgE production and increased T cells.
Choose the letter of the best match from the following:A. hypocotylB. endospermC. scutellumD. radicleE. epicotylThe part of the stem axis that extends above the cotyledons in some seedlings.
Fill in the blank(s) with the appropriate word(s).