To which era do these fossils belong?
A) Mesozoic
B) Cenozoic
C) Precambrian
D) Paleozoic
Answer: D
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One of the first chemotherapy drugs, vincristine, was discovered in the rosy periwinkle and is a(n) ___________
A. terpenoid B. phenol C. non-protein amino acid D. alkaloid
The first child conceived using IVF was born in ____
a. 1958 b. 1968 c. 1978 d. 1988 e. 1998
Phil has chronic ulcers, he has been taking acid blockers and drinking vast amounts of liquid antacids. These help relieve the symptoms but he still suffers from ulcers. What would be the best course of action to treat the source of his ulcers?
A. Reducing the stress in his daily life B. Increasing the dosage of acid blockers C. Taking several different antacids D. Taking a course of antibiotics E. Changing his diet to include more fiber
Which of the following statements regarding Streptococcus pyogenes is FALSE?
A) It produces protein A, which inhibits opsonization. B) It is beta-hemolytic. C) It has group A Lancefield antigens. D) It produces streptolysins. E) It can be lysogenized by a temperate bacteriophage to produce erythrogenic toxins.