The first vertibrate appears in which period of the palaeozoic era
Answers
Answered by
10
Answer:
The first vertebrates appeared in the form of primitive fish, which greatly diversified in the Silurian and Devonian Periods. The first animals to venture onto dry land were the arthropods. Some fish had lungs, and powerful bony fins that in the late Devonian, 367.5 million years ago, allowed them to crawl onto land.
Answered by
2
Answer:
the symbols of an elements means a show method of representing full full name of an element
Similar questions