8. Which of the gases listed below is more important meteorologically? water vapor & carbon dioxide
O water vapor & nitrogen
oxygen & nitrogen
oxygen & nitrous oxide

im not in connections yet but i might can you some questions. what grade are you in?

geologic time scale (for gradpoint) =)

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.