Evolution is the million years old process, which has led to the adaptation and development of a variety of species. The new era of the Earth can be marked by the extinction of mammals and the rise of insects.
The correct option is:
Option D. The extinction of mammals and the rise of insects as the dominant species
The Cretaceous period was ended around 66 million years ago. The sudden asteroid attack on the Earth killed the mass population of mammals and most of all the other species.
Somehow, few of the mammals survived and thrived, which made them dominant across the planet.
In the future, the million years or the hitting of an asteroid can mark the new beginning of an era. The asteroid hitting can lead to the extinction of organisms present on the Earth. Some of the species or insects can survive hypothetically, which can represent the beginning of the new era.
Therefore, the correct option is D.
To know more about the extinction of organisms and era, refer to the following link:
https://brainly.com/question/15529569
