Respuesta :
ANSWER: In the Cenozoic Era, the mammals like Tiger, Woolly Mammoth, Caver Beer, Giant Deers were present. As the dinosaurs were also present during that era, they were at the bottom at the food pyramid and was hunted by the dinosaurs who were classified the category of Reptiles. So, the differentiation was simple to identify between the two.
Answer:
During the Cenozoic Era, Australia separated, and marsupials evolved.
Explanation:
on edgenuity 2020