A disease that is usually present at a low level in a certain geographic area is said to be
A. Ubiquitous
B. Pandemic
C. Epidemic
D. Non-communicable
E. Endemic
Answer: E. Endemic
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Which marine zone would have the lowest rates of primary productivity (photosynthesis)?
A) pelagic B) abyssal C) neritic D) continental shelf E) intertidal
The Calvin cycle of a plant exposed to light during the day that is suddenly put in the dark
A. cannot run, as it requires light energy directly. B. can still run as long as there is ATP, CO2, and NADPH present. C. runs in a different place in the plant. D. uses a different source of carbon.
Most geneticists would agree that human races are distinct genetic entities. Indicate whether the statement is true or false
Which of the following enzymes digests starch?
a. carboxypeptidase b. amylase c. trypsin d. chymotrypsin e. pepsin