Animals with back bones are known as vertebrates
Exoskeletons
Vertebrates are animals with back bones. Invertebrates don't.
All over the place, it's the group of animals we see most often. All 4-legged animals have backbones. All birds and snakes for instance have back bones.
animals with back bones
Back Bones
It depends on which animal you are talking about. Some animals without bones are larger than animals with bones. Compare the Giant Pacific Octopus with a mouse.
Yes
Invertebrates.
mammals
Mollusks are invertebrate animals. This means they have no vertrebral column, or back bone.
Animals with no backbones are called invertebrates and they include insects, worms, spiders along with soft bodied animals such as sponges, sea anemones and jellyfish.Invertebrates are the animals without back bones.
Animal without back bone