hmm, chameleon dwarf hamsters don't exist I am sorry to say. but you can buy dwarf or Syrian hamster.
at a pet store
If the chameleon is angry, then it should have red and orange spots.
meal worms you can buy them at any petstore
please not buy
Nowhere because they're fake
I highly recommend buying your chameleon from a breeder. Much safer, and you can ask the breeder any questions you may have about the lizard you're buying.
Iguana
You should take him to a reptile vet, your poor chameleon could be having a prolapse or have a hemorrhoid. It can be extremely painful so take him in as soon as your read this.
Yes. It tends to make them hunt as they would in the wild.
si the chameleon is endotherm
A chameleon is a carnivore.