1. Bony Exoskeleton (480 mya)
2. Jaws (440 mya)
3. Bony Endoskeleton (410 mya)
4. Limbs capable of moving on Land (365 mya)
5. Amniotic Egg (345 mya)
A back-bone
In vertebrates, a backbone of bone or cartilage segments called vertebrae develops around the notochord. Hope i could help
It is because the first animal to have a hand had a specific bone structure in that hand that was very well adapted. All vertebrate animals with a hand, wing, or flipper trace ancestry back to that first animal with a hand. The bone structure is modified slightly for each animal, but the organization of bones in the hand is the same among all the animals that have a hand.
Some scientists believe that chickens descended from prehistoric animals that were feathered and had similar bone structure
Monkeys, like all mammals, have a skeletal structure of bone and cartilage, making them vertebrates.
Vertebrates have a back bone but in vertebrates do not
No, bacteria are not vertebrates as they dont have a back bone.
The body structure in all vertebrates indicated that these organisms originated from Precambrian times. This has to due with having a back bone.
yes they do they have a back bone right so they are vertebrates.
Barracudas are vertebrates, specifically belonging to the family Sphyraenidae within the order Perciformes. They are bony fish characterized by their elongated bodies, sharp teeth, and predatory behavior. As vertebrates, they possess a backbone and a skeletal structure made of bone.
bone
The major difference between vertebrates and invertebrates is that vertebrates have a back bone and invertebrates don't