Scorpions, obviously, but also harvestmen (not Aranea, other group more closely related to scorpions), and even horseshoe crabs.
Spiders, tarantulas and some other kinds of arthropods.
Yes, entomologists study spiders as part of their research on insects and other arthropods.
Arthropods belong to the insect kingdom, because they have 6 legs, and all of their other features are like any other insects features.
The key similarity between insects and spiders that distinguishes them from other arthropods is that they both have segmented bodies and jointed legs.
bane of arthropods does extra damage to Spiders, cave spiders, and silverfish
Bane of Arthropods will kill Spiders, and Cave Spiders fasyer than any other Enchantment!
Arthropods
There is no actual "opposite" of an insect. However, the other insect-sized arthropods are the arachnids (Spiders and scorpions).
Yes, Spiders are arthropods
Yes, crabs and Spiders are both arthropods.
Many of these arthropods are bugs that feed on plants, fungus and other dead or living animals. Arthropods like spiders or scorpions prey upon and kill other animals that they then eat. Spiders and scopions use venom also to kill their prey.
Roundworms (Nematoda) are related to arthropods because they both molt.Note; Crustaceans are arthropods. :P