A vertebrate is defined as a chordate that has a backbone. The backbone is called the vertebrae. Vertebrates also have a nerve cord that is hollow.
Backboned
The Tunicate in larva form are possibly the earliest link between chordates and their non vertebrate ancestors. The lancelet that have a notochord that persist through out development are possibly the oldest ancestor of the modern vertebrates.
Chordate
Yes, the butterfly is an arthropod
birds and mammals are endothermic chordates
It is vertebrate Chordate.
Backboned
I do not know to be honest, sorry.
A chordate is any animal that has a notochord or spinal chord. Any animal that is a vertebrate, i.e. mammals, birds, fish, reptiles or amphibians, is a chordate, or member of the phylum Chordata. As the platypus is a mammal, this includes platypuses as well.
No. A snake is a vertebrate.
No, it only has a notochord no vertebrae so it is only a Chordate not yet a vertebrate.
No, a catfish is a chordate of the vertebrate variety.
A vertebrate is a type of chordate. For example In the phylum Chordata they're are three subphyla, Urochordata, Cephalochordata, and Vertebrata. Vertebrates fall in the subphyla Vertebrata.
The octopus is not a member of phylum Chordata, so it is not a chordate.
Chordates have a nerve cord running their backs. Some chordates are vertebrates. They have vertebrate, or a segmented backbone, protecting the nerve cord.
The notochord of a vertebrate differs from that of an invertebrate because a vertebrates eventually turns into a back bone. Invertebrates just disappears.
All birds are vertebrates.