Colombian exchange affected greatly almost every society on earth.
"Very few Roman emperors in the centuries after Augustus were competent rulers; most were insane, greedy, or both" and "Exposure to diseases from other lands killed many Romans" are the two statements that <span>correctly describes the beginning of the decline of the Roman Empire. The correct options are option "A" and "B".</span>
This makes them an “umbrella species,” meaning that when we protect them and their habitat we also protect many species. Grizzly bears can also help ecosystems by distributing seeds and nutrients through their scat, and occasionally regulating ungulate populations.
