The Cenozoic is the age of mammals.
It was during the Cenozoic that these lifeforms proliferated:
- Grasses
- Flowering plants
- Birds
- Rodents
- Snakes
Also, Antarctica developed its ice sheet through most of the Cenozoic.
It is B i just did that test and i alredyknow
Answer:
SPONGE BOB SQUARE PANTS!!!!!!!!
Explanation: