In the context of a scientific experiment, what is a control group? A) a group that is treated differently from others except for the variable being tested.

B)a group that is treated the same as other groups except for the variable being tested.

C)a group assembled only under environmentally controlled conditions.

D)a group treated the same as others except that it has fewer subjects.

B. A group that is treated the same as other groups except for the variable being tested.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.