Question

1. which era is known as the age of mammals?

○ cenozoic
○ triassic
○ mesozoic
○ ordovician

Explanation:

The Cenozoic Era, following the Mesozoic (Age of Reptiles), is defined by the diversification and dominance of mammals after the extinction of non-avian dinosaurs. The Triassic is a period in the Mesozoic, the Mesozoic is the Age of Reptiles, and the Ordovician is an early Paleozoic period with marine invertebrates as dominant life forms.

Answer:

A. Cenozoic