Give three instantaneous scale (time) examples of earth's systems, two long-term scale (time) examples of earth's systems, and three examples of cycles of earth's systems. why are volcanoes and volcanic activity a good example of system interactions? (site 1)

a community that experiences major changes undergoes progress

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.