What do food chains show?
oa) the movement of hierarchy from one population to another
ob) the movement of energy and matter from one population to another
oc) the movement of energy for decomposers only
od) the movement of energy for producers only

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.

burning fossil fouls really decrease the carbon in the atmosphere so b

what? are the statements?