Essayist: When the first prehistoric migrations of humans from Asia to North America took place, the small bands of new arrivals encountered many species of animals that would be extinct only 2,000 years later. βββββ ββ ββ βββββββββββ ββββ βββββββ ββ βββββ βββββ βββββ ββ ββββββ βββββ ββββ βββ ββββ ββ βββββββ βββ βββββ βββββββββββββββ ββββββββββββββ βββ ββββββ ββ βββββ βββββββ ββββ βββββββββββ βββββ ββ βββ βββ ββββββββ ββ ββββ ββ ββ βββ βββββββ ββββ ββββββββ βββββ βββββ ββββββββββββββ ββββ ββββββββ βββ βββββββ ββββββ ββββ ββββββββ βββ βββ ββββββββββββ
The essayist hypothesizes that microorganisms brought to North America by prehistoric humans were the key reason that many species of native animals went extinct within the next 2,000 years. This is because it's implausible that the prehistoric humans would have been able to hunt those animals to extinction, and those same humans certainly brought microorganisms with them.
The essayist assumes that there were no other means besides hunting and microorganisms that couldβve caused the animals to go extinct. For example, perhaps those animals were sensitive to climate changes around that time.
Analysis by AlexandraNash
Which one of the following, ββ βββββ ββββ βββββββ βββ ββββββββββ βββββββββ
Animals weakened by βββββββ βββ βββ ββββ ββββ ββββ ββ βββββ βββββββ βββ βββ ββββ ββββ ββββ ββ βββββ βββββ βββββ ββββββββββ
Human beings generally ββββ β βββββββββββ ββββββ ββ ββββββββββ ββββββββ ββ βββ ββββββββ βββββββ ββ βββββ ββββββββ
Very few species ββ βββββ ββββββββ βββββββ βββ ββββββ ββ βββ βββ ββββββββ ββββ ββββ ββββ βββββββ βββββ βββββ βββββ βββ βββββ βββββββββββ
Individual humans and βββββββ βββ βββββ β βββββββββββββββ βββββββββββββ βββββββ ββββββββββ βββββββββ ββββ βββ ββββββββ
Some species of βββββ ββββββββ βββββββ ββββββ βββββββ ββββ ββββ βββββ βββββ βββββ βββ βββββββ ββ βββββ βββββββ ββ βββ βββββ βββββββββββ βββββ ββββββββ ββββ βββββ