A population of people is living on a remote island off the coast of South America. They have been isolated from the rest of the world and have never been vaccinated or received antibiotics. Explain what impact, if any, the X-strain of flu virus would have on the population if they were given antibiotics, were vaccinated, or had been previously exposed to the X-strain of the flu virus.

age range would be the 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.