PLEASE ANSWER QUICKLY the bass and crayfish likely died off because the rapid growth of the algae eventually cause that level of dissolved oxygen to decline to a point that these oxygen dependent organisms could no longer survive how would you modify this investigation of the pond organisms to determine if the algal bloom really was the cause of the bass and crayfish die-offs?​

u i don't know

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.