2. Scientists have theorized that an increased
concentration of carbon dioxide will cause an
increase in worldwide atmospheric temperature,
This theory is based on the fact that carbon
dioxide is a
A good absorber of infrared radiation
B.
poor absorber of infrared radiation
C. good reflector of ultraviolet radiation
D
poor reflector of ultraviolet radiation

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.