No. Only vertebrates (fish, amphibians, reptiles, birds, mammals) have backbones, the remaining 99% of animals does not.
No, they have an exoskeleton
(just like insects) No arachnids don't have backbones. They are just an eight legged creature, that are invertibrates. But they do have small individual bones.
They are invertebrates because, they don't have backbones. Spiders have a outer coating like a m&m that holds their insides in.
There are seven animals without backbones. They are called: Protozoa, Annelids,mullusks,Echinoderms,Crustaceans,Arachnids and Insects.
Invertebrates do not have backbones and the list is long. A few examples include the insects, worms, mollusks, echinoderms, arachnids, gastropods, protozoans, etc.
insects
Mites and spiders are not insects, they are arachnids. While insects and arachnids have many similarities, they also have some obvious differences. Insects have six legs while arachnids have eight.
No, they are insects.
No they are not. Insects have 3 body parts (head, thorax, abdomen) and only have 6 legs. arachnids have 2 body parts (head, abdomen) and have 8 legs. Both insects and arachnids are arthropods.
Lice are insects, not arachnids.
Tarantula's are Spiders, and Spiders are Arachnids. Arachnids have 8 legs, Insects have 6 legs. Spiders have 8 legs so there for a Tarantula is a Spider.
Arachnids and insects are both types of arthropods, but they have some key differences. Arachnids, like spiders and scorpions, have eight legs and two body segments, while insects, like ants and bees, have six legs and three body segments. Additionally, arachnids do not have antennae, while insects do.