B, if he didn't end up taking all of the antibiotics that will happen
Explanation:
Cave lions, sabre-toothed cats, cave bears, giant deer, woolly rhinoceroses, and woolly mammoths were prevailing species of the Quaternary period. Without the dinosaurs, plant life had an opportunity to flourish during the Cenozoic era.
Answer:
it illustrated natural selection because the most favorable traits live longer than the unfavorable traits.
Explanation:
