Echinoderms such as starfish and similar marine animals with radially symmetrical bodies have bone-like calcareous skeletal plates in their skin
Harold W Manner has written: 'Embryology of the vertebrates' -- subject(s): Vertebrates, Embryology
No. Mammals belong to the vertebrates group and echinoderms are invertebrates, and have exoskeletons instead.
During embryonic development, all vertebrates go through similar stages such as gastrulation where three germ layers are formed, and neurulation where the nervous system begins to develop. Additionally, all vertebrates exhibit similar embryonic structures such as the notochord and pharyngeal arches. The similarities in embryology across different species provide evidence for common ancestry and evolutionary relationships.
No. echinoderms have no exoskeleton.Related Information:Echinoderms are deuterostomes, a group belonging to the Phylum, Chordata but separate from the vertebrates, also of this phylum. While there is a close relationship between the echinoderms and the vertebrates, echinoderms are endoskeletal invertebrates.
Alfred Francis Huettner has written: 'Fundamentals of comparative embryology of the vertabrates' -- subject(s): Vertebrates, Embryology
Harry Lewis Wieman has written: 'A laboratory manual for vertebrate embryology' -- subject- s -: Embryology, Laboratory manuals, Vertebrates
In vertebrates as well as in echinoderms it is anus.So it is anus
Silvano Leghissa has written: 'Elementi di embriologia dei vertebrati e dell'uomo' -- subject(s): Comparative embryology, Embryology, Human Embryology, Vertebrates 'Compendio di citologia e istologia'
Alfred F. Huettner has written: 'Fundamentals of comparative embryology of the vertebrates'
No. All echidnas are mammals, and all mammals are vertebrates. Echidnas are different from "echinoderms".
A. Arthropods
No, starfish are not reptiles. Reptiles are vertebrates; that is, they have backbones. Fin-fish, amphibians, reptiles, birds, and mammals are vertebrates. Starfish aren't. Starfish are invertebrates called echinoderms.