Earth's history. In the worst one, 250 million years ago, 96 percent of marine species and 70 percent of land species died off. It took millions of years to recover.
Answer: as many as you’d like
Explanation:
You can put as many portabella mushrooms as you want
The central nervous system by sending messages from the brain through the nerves that go to your spine.
Delta can also be an easy answer plus it is easy to remember
