Question

What are arthropods vertebrates or invertebrates notochord?

Answer 1

Explanation:

Inertebrates are the organisms that lack a backbone but they may have unprotective notochord is present in lower animals which may evolve into vertebrae.....

for example.... insects and Starfish.......

chordates are animals that may have a vertebrae or notochord-- is a larger classification of group of vertebrates......

Answer 2

Answer:

an animal lacking a backbone, such as an arthropod, mollusc, annelid, coelenterate, etc. The invertebrates constitute an artificial division of the animal kingdom, comprising 95 p