Use the Information in the Following Paragraph to Answer the Next

question 56

Multiple Choice

Use the information in the following paragraph to answer the next few questions.
A hypothetical bacterium swims among human intestinal contents until it finds a suitable location on the intestinal lining. It adheres to the intestinal lining using a feature that also protects it from phagocytes, bacteriophages, and dehydration. Fecal matter from a human in whose intestine this bacterium lives can spread the bacterium, even after being mixed with water and boiled. The bacterium is not susceptible to the penicillin family of antibiotics. It contains no plasmids and relatively little peptidoglycan.
-This bacterium derives nutrition by digesting human intestinal contents (in other words, food) . Humans lacking this bacterium have no measurable reproductive advantage or disadvantage relative to humans who harbor this bacterium. Consequently, the bacterium can be properly described as which of the following?
1) symbiont
2) endosymbiont
3) mutualist
4) commensal

• A) 4 only
• B) 1 and 2
• C) 1 and 4
• D) 2 and 3
• E) 2 and 4

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Definitions:

Interest Rates

The proportion of a loan that is charged as interest to the borrower, typically expressed as an annual percentage of the loan amount.

Supply and Demand

Economic model describing how prices vary as a result of a balance between product availability and the desire of consumers.

Federal Reserve

The central banking system of the United States, responsible for setting monetary policy, regulating banks, and providing financial services to the government.

Non-Amortized Debt

A loan in which the principal amount borrowed does not decrease through regular payments over the term of the loan.