A Professor Wanted to Examine the Effects of Diet on Learning

question 152

Multiple Choice

A professor wanted to examine the effects of diet on learning. He put some laboratory rats on a starvation diet (Group A) but eliminated only desserts from the diet of a second group (Group B) . During the experiment, the professor discovered that he needed more Group B rats, so he caught some in a local alley. The results of the experiment showed that Group B rats were faster at learning a maze, so the professor concluded that diet is related to learning speed. Which of the following statements is the most accurate?

• A)The professor's conclusion is correct.
• B)The professor's conclusion is incorrect because the rats in Group A were on a different diet than the rats in Group B.
• C)The professor's conclusion is incorrect because the type of rat was a confound.
• D)The professor has used a double-blind procedure.

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Definitions:

Somatic Cell

Any cell of a living organism other than the reproductive cells.

Egg

Female gamete.

Sperm

Male gamete.

DNA Replication

Process by which a cell duplicates all of its DNA before it divides.