Something with a pH of 5 would be ________
A) acidic
B) basic
C) neutral
D) alkaline
A
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Profuse watery diarrhea (i.e., "rice water stools"), leading to dramatic fluid loss, severe dehydration, and hypotension that frequently leads to death, is the hallmark of which toxin activ-ity?
a. Cholera toxin (CT) b. Enteric endotoxin c. Shiga toxin d. Toxin A
Myoglobin is a protein found in the muscles of cetaceans that:
a. stores energy. b. stores oxygen. c. maintains buoyancy. d. maintains heat. e. stores ATP.
In the cell cycle, the G2 phase represents ____
A. the stage of DNA synthesis B. splitting of the chromosomes into chromatids C. a period of growth D. the stage of actual cell division E. the stage just prior to meiosis
When sodium ions move from one cardiac muscle cell to an adjacent cell, causing them to contract in unison, this is an example of
A. endocrine signaling. B. paracrine signaling. C. contact-dependent signaling. D. direct intercellular signaling. E. autocrine signaling.