Foraminifera are a type of protist that
A. cause malaria.
B. are associated with human disease.
C. help in estimating the age of ocean deposits.
D. move by means of flagella.
Answer: C
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A researcher lacked the necessary equipment to measure methane production so instead monitored CO2 concentration as the unknown archaeon grew and produced methane. Why might CO2 NOT decrease but methane still increase?
A) An alternative carbon source such as methanol was used. B) CO2 is not a carbon source used by methanogens. C) CO2 was used an electron donor but not as a carbon substrate. D) Methanogenic Archaea containing carboxysomes likely made measuring small losses of CO2 difficult to conclude.
Which macromolecule has the highest diversity of functions?
A. carbohydrates B. proteins C. nucleic acids D. lipids E. glycolipids
In cats, short hair L is dominant to long hair l, and black hair B is dominant to brown hair b. If you found a black,
short-haired cat, you could determine his genotype by crossing it to an animal with a genotype of ____.
a. LLBB b. llBB c. llBb d. llbb e. LLbb
Which of the following U.S. agencies oversees phase testing of drugs prior to their approval for clinical uses?
A) USDA B) EPA C) FDA D) NIH E) NSF