The latency period of syphilis is ________.

A. 20 years or longer
B. 10 years
C. 3 to 6 months
D. 1 year


Answer: A

Biology & Microbiology

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When molecules are broken apart in respiration, ____

a. the heat produced is used to drive biological reactions b. the oxygen in the compounds that are broken apart is used as an energy source c. the energy released is channeled into molecules of ATP d. ATP is converted into ADP e. ADP is released as a waste product

Biology & Microbiology

Which one of the following types of cancer kills the highest percentage of people diagnosed with the condition?

A) lung B) breast C) prostate D) skin E) colon

Biology & Microbiology

In World War I, mustard gas was used as a chemical weapon, and at a high dose, it would cause death. However, it is now known to be a chemical mutagen. Explain how those who came in contact with mustard gas and survived have an increase chance of

developing mutations. What will be an ideal response?

Biology & Microbiology

Infection with ________ usually produces acute upper respiratory disease but may cause meningitis in infants 3-18 months old.

A. Klebsiella pneumoniae B. Francisella tularensis C. Coxiella burnetii D. Haemophilus influenzae E. Hafnia species

Biology & Microbiology