What vertebrate group is a lizard in?

Answer 1

All vertebrates are members of the phylum Chordata, but not all creatures in Chordata are vertebrates.

There are three subphylums in Chordata. Two of them are invertebrates - Urochordata (tunicates) and Cephalachordata (lancelets), while the third is Vertebrata (vertebrates).

This phylum includes all animals which have a hollow nerve cord and a notochord at some stage during their development. In the case of vertebrates, the notochord is present in the embryo, and develops into the vertebral body. In the tunicates, the adult form no longer has the notochord.

Another characteristic they share is that, at some stage during their lives, they have pharyngeal grooves and pouches that develop into other essential parts of their anatomy (many textbooks still state that all vertebrate embryos have gill slits, but there has been a great deal of development in the science of embryology to refute this claim).

Chordates all have a post-anal tail, which means an extension of the notochord and nerve chord behind the anus, although this feature is no longer present in the mature forms of some creatures such as frogs, and some mammals such as people.

Chordates also have a closed circulatory system, although not all Chordates have an actual heart like the vertebrate Chordates do.

Answer 2

Yes. All lizards are vertebrates
yes
Yes they are
yes
yes, all reptiles have spines. yes, all reptiles have spines. yes, all reptiles have spines.
Yes, it has. But tail is not an extended part of backbone.
yes they are. They are in the Reptiles
Yes they are

Answer 3

No. Lizards are vertebrates because they have backbones.

1. vertebrate

Answer 4

I think so, because Tuataras are and they are Reptiles

Answer 5

yes lizard is a vertebrate and so it has a vertebral column and hence vertebrae.

Answer 6

A lizard is both. All vertebrates are chordates.

Answer 7

All reptiles have internal skeletons with backbones, so they are all vertebrates.

Answer 8

yes reptiles are vertebrates

Answer 9

Lizards do have a spine.

Answer 10

reptilian