How were species affected by the break up of pangaea?

Correct

Pangea is called to the union of all the continents in a supercontinent that took place about 225 million years ago. This event greatly affected the species because they had to adapt to new environments and environments.

For the previous reason species increased, because the chances of survival also did so thanks to specialized adaptation to these new environments. When continents come together species diversity tends to go down and when big continents start to break up, species diversity tends to increase.

They were very dependent on each other, so after the break up of Pangaea, they had to learn hot to live on their own.

probally   a few days after there called