Which of the following structures separates the cytoplasm from the environment outside of the cell?

Explanation: APEX answer

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.

c is the answer to this question. altitude affects the weather because air molecules evaporate.