Which of the Following Is an Example of Naturally Acquired

question 33

Multiple Choice

Which of the following is an example of naturally acquired passive immunity?

• A)Mother passes antibodies on to her baby through her breast milk.
• B)A patient is treated with a rabies serum.
• C)A patient is inoculated with the polio vaccine.
• D)Your cousin exposed you to a nasty cold virus just before spring break.
• E)None of the choices is correct.

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Definitions:

Observational Study

A study wherein researchers observe and record data without manipulating any variables, in contrast to an experimental study.

Matched Pairs

A study design in which subjects are paired based on specific characteristics, with one in each pair receiving treatment and the other not.

Blocking

A technique in experimental design used to reduce the effects of nuisance variables by grouping subjects into blocks based on these variables.

Experimental Unit

The smallest division of the experimental material such that any two units may receive different treatments during the experiment.