Question
Biology Question on evolution
First mammal occurred in which era and period ?
A
Permian-palaeozoic
B
Triassic-mesozoic
C
Tertiary-coenozoic
D
None of these
Answer
Triassic-mesozoic
Explanation
Solution
During triassic period of mesozoic era, mammals originated. There was also rise of dinosaurs and rise and fall o f tortoises during this period.