A scientific theory that has been well-tested and is generally accepted as true is called a(n) . You are performing an experiment using both a control and an experimental setup. The setup contains the variable.

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.

not: both offer magnification to the atomic level.