How much groups of invertebrateand vertebratearethere? how much typesof teeth human have?

Question

How much groups of invertebrateand vertebratearethere? how much typesof teeth human have?

Answer 1

* Porifera

(alternatively)

    * Calcarea

    * Silicarea

Subregnum Eumetazoa

    * Placozoa

    * Radiata (unranked)

          o Ctenophora

          o Cnidaria

          o Trilobozoa †

    * Bilateria (unranked)

          o Orthonectida

          o Rhombozoa

          o Acoelomorpha

          o Myxozoa

          o Chaetognatha

          o Superphylum Deuterostomia

                + Hemichordata

                + Echinodermata

                + Xenoturbellida

                + Vetulicolia †

          o Superphylum Ecdysozoa

                + Kinorhyncha

                + Loricifera

                + Priapulida

                + Nematoda

                + Nematomorpha

                + Lobopodia †

                + Onychophora

                + Tardigrada

                + Arthropoda

          o Superphylum Platyzoa

                + Platyhelminthes

                + Gastrotricha

                + Rotifera

                + Acanthocephala

                + Gnathostomulida

                + Micrognathozoa

                + Cycliophora

          o Superphylum Lophotrochozoa

                + Sipuncula

                + Hyolitha †

                + Nemertea

                + Phoronida

                + Ectoprocta

                + Bryozoa

                + Entoprocta

                + Brachiopoda

                + Mollusca

                + Annelida

                + Echiura

All of the above are invertebrate phyla

The Vertebrates are a sub phylum in the phyla Chordata.

Composed of fish , amphibians, reptiles, birds, mammals.

Humans have four types of teeth, incisors, canines, premolars, molars.