There are many facts about arachnids.
Here are some:
1. Arachnids are invertibrates (No backbone)
2. Arachnids include spiders, mites, harvestmen, and pseudoscorpions.
The scientific name is Arachnida, and the higher classification name is Chelicerata.
By making greenhouses gases like carbon dioxide.
The mantle is very hot. Thickness is 2885km.
Answer: Migration, because species move to other places for food or a better or more suitable habitat and sometimes their is other species there.
