Which is the best explanation for how ibuprofen works?
A. It thins the blood to relieve joint pain.
B. It inhibits cyclooxygenase-2, which is needed to produce prostaglandins.
C. It activates cyclooxygenase-2, which then produces more prostaglandins.
D. It down-regulates the production of substance P.
E. It activates cyclooxygenase-2, which promotes healing of tissue.
B. It inhibits cyclooxygenase-2, which is needed to produce prostaglandins.
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Temperate bacteriophages ____
a. kill their hosts during each cycle of infection b. infect only animals c. may enter an inactive phase in which they do not kill their host d. are enveloped viruses e. infect organisms living in temperate environments
Cells in the nervous system that send and receive electrical signals are called ____
a. receptors b. neurons c. sensors d. glial cells e. signal cells
Duchenne muscular dystrophy and Becker's muscular dystrophy are caused by different mutations in the same X-linked
gene. a. True b. False
An example of a micronutrient is phosphorus
____________________ Indicate whether the statement is true or false.