Suppose you are on the planet Sloth, where gravity is 1/9
the gravity on Earth. You drop a stone and
measure its speed as it hits the ground. How
does that speed compare to the speed the
same rock would reach falling the same dis-
tance on Earth?

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.