A decrease in which hormone might cause an overproduction of stomach acids?
a. gastrin
b. somatostatin
c. CCK
d. secretin
e. GIP
ANSWER: b
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You are a doctor who examines a swollen and warm puncture wound on the hand of a patient. Because the wound was made by a rusty nail, you are concerned about infection by Clostridium tetani bacteria, which cause tetanus
You are relieved to see that the patient received a tetanus vaccine at her last checkup. The vaccine ____________. A. exposed the patient to C. tetani so that she contracted a mild version of tetanus. B. exposed the patient to deactivated C. tetani, so that her B cells would produce antibodies to the bacteria with minimal risk of contracting the disease. C. stimulated the production of mast cells by her bone marrow. D. exposed the patient to other types of bacteria, so that her immune system would be prepared for infection by prokaryotes.
The search for a(n) ____ treatment led to the discovery that DNA carries genetic information
a. pneumonia b. AIDS c. tuberculosis d. influenza e. SARS
IA and IB alleles exhibit ________ (complete or incomplete) dominance over the i allele
Fill in the blank(s) with correct word
Red algae can grow at greater ocean depths than most other algae can because red algae are
A. specialized for absorbing red wavelengths of light for photosynthesis B. specialized for absorbing ultraviolet wavelengths of light for photosynthesis C. specialized for absorbing blue wavelengths of light for photosynthesis D. unable to use chlorophyll for photosynthesis E. adapted for chemosynthesis, rather than photosynthesis