Use the Following Information to Answer the Questions Below

question 33

Multiple Choice

Use the following information to answer the questions below.
The research team established similar lymphocyte cultures from a number of human donors, including healthy teenagers of both genders, patients already suffering from long-term bacterial infections, and elderly volunteers. They found that the increase in lymphocyte incorporation after pathogen introduction was slightly lower in some of the female teenagers and significantly lower in each of the elderly persons. They repeated the study with a larger number of samples but got the same results.
-Which of the following investigations might be most productive to show what the data on the teenagers might indicate?

• A) test male teenagers
• B) test teenagers who say they are not sexually active
• C) test female teens at different times in their menstrual cycles
• D) test relatives of the teens previously tested
• E) test teenagers from different school systems

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Definitions:

Reserve Ratio

The fraction of deposits that banks are required to hold in reserve and not lend out, set by central banks to control the money supply and banking stability.

Depository Institutions Deregulation and Monetary Control Act

A U.S. federal law enacted in 1980 aimed at improving the Federal Reserve's control over monetary policy, deregulating certain aspects of the banking industry.

Legal Reserve Requirements

Legal reserve requirements are regulations set by a central bank that determine the minimum amount of reserves that must be held by a financial institution.

Depository Institutions

Depository Institutions are financial entities such as banks and savings associations that accept deposits from individuals and provide loans.