Question

Mammals evolved into larger organisms and began subdividing into various species in the _____________. a. Mesozoic era c. Cenozoic era b. Paleozoic era d. Devonian era

Answer 1

The correct wnswer is d

Answer 2

c. Cenozoic era

Step-by-step explanation:

During the beginning of Cenozoic era, which occurred more than 55 mya, mammals exhibited adaptive radiation. The mammals became distributed in various habitats and exhibited evolution of adaptive features to survive better in variety of ecological conditions. It was the era when new varieties of mammals with larger body size evolved due to appearance of new habitats as provided by flowering plants.