Describe some of the changes in the land and in life-forms that occurred at the end of the paleozoic era.

The first land vertebrates, reptiles, and many advanced plants were emerged at the end of Paleozoic era.

Explanation:

The paleozoic era is the time of ancient life forms. It consists of a variety of invertebrates plants and seedless plants. Many of the life forms were present in the sea.

This era was further divisible into 7 periods. But with time, many changes happen at this time. The plants and animals show rapid diversion. Many life forms destroyed until the end of this era. This mass destruction is called the Cambrian explosion.

But after such destruction, the new life emerged at a very fast rate. Late Paleozoic era, first amphibians, and vertebrates arose. These animals came out of the sea to land. After the amphibians, reptiles also came to existence.

The plants were mostly the vascular plants, ferns spread all over on the land. After the Paleozoic era, the Mesozoic era started, which was dominated by reptiles.

answer; cnidarians;