A pathogen is best described as
A. a microorganism that remains with the person throughout life.
B. any microorganism that causes disease.
C. an organism that remains in the body for a short time.
D. a microorganism that may cause a disease under certain circumstances.
E. a source of microbial contamination.
Answer: B
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If the figure above shows the dances of bees in a hive at twelve noon on March 21 in the northern hemisphere, which dance is communicating that the food is to the south of the hive?
A) dance A B) dance B C) dance C D) It is not possible to tell if any of the dances indicate the food is to the south of the hive.
What is adiabatic cooling?
A. the cooling due to rainfall on windward side of a mountain B. the cooling due to polar air masses flowing towards the equator C. cooling due to the decrease in air pressure at higher elevations D. the cooling due to increased cloud cover at higher elevations
All strains of Staphylcoccus aureus can produce food poisoning.
Answer the following statement true (T) or false (F)
The two structures of the eye that focus light are the ________ and ________
Fill in the blank(s) with correct word