Choose all the answers that apply.

The earth's atmosphere:

A-is made mostly of oxygen
B-helps recycle water
C-protects the earth from harmful radiation
D-reduces the temperature extremes between day and night
C-recycles carbon dioxide and oxygen

Checking here might help

https://quizlet.com/es/433814238/layers-of-the-atmosphere-flash-cards/

I think the answers A + D , but I could be wrong

Explanation:

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.