Which of the following statements about prostaglandins is not true?
A. Prostaglandins promote inflammation.
B. Prostaglandins can only constrict blood vessels.
C. Prostaglandins are made in the renal medulla.
D. Prostaglandins can lead to pain and fever.
Answer: B. Prostaglandins can only constrict blood vessels.
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Alternate forms of genes resulting from mutations are called
A. alterons. B. isoforms. C. lethal. D. alleles.
This graph shows both human birth weight and
newborn infant mortality. The most common birth weight is between seven and eight pounds. Human birth weight seems to be an example of a. directional selection. b. stabilizing selection. c. sexual selection. d. disruptive selection. e. artificial selection.
Predict how many molecules of carbon dioxide are produced from the mitochondrial "burning" of one molecule of glucose?
A) 1 B) 6 C) 12 D) Not enough information provided
The rough ER differs from the smooth ER in that it is covered with:
a. mitochondria b. microtubules c. chromatin d. ribosomes