December 1, 2015

Homework Help: Physical Science

Posted by Vegeta Super Saiyan 3 on Thursday, January 6, 2011 at 4:26pm.

Four groups of rats are tested in a lab. Group 1 is given a special hornmone for muscle growth. Group 2 is given a special multivitamin diet. Group 3 recieves both the hormone treatment and the multivitamin diet. Group 4 does not recieve any extra treatment or special diet. which of the groups is the control group for this experiment? Explain your reasoning.

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