What is an arachanids?

Answer 1

Arachnids are a class of joint-legged invertebrates that includes Spiders, scorpions, ticks, and mites. They typically have eight legs, a two-part body structure comprising the cephalothorax and abdomen, and lack antennae. Arachnids are primarily terrestrial and play various ecological roles, including predators and parasites. They are distinct from insects, which have six legs and a three-part body structure.