in which era did mammals emerge?\n○ cenozoic\n○ mesozoic\n○ paleozoic\n○ precambrian
in which era did mammals emerge?\n○ cenozoic\n○ mesozoic\n○ paleozoic\n○ precambrian
Answer
Brief Explanations:
Mammals first appeared during the Mesozoic era. The Cenozoic is the age of mammals but they emerged earlier. The Paleozoic predates the appearance of mammals. The Precambrian is even earlier and lacks complex land - dwelling mammals.
Answer:
B. Mesozoic