Animals (original) (raw)
Frae Wikipedia, the free beuk o knawledge
| AinimalsTemporal range: Cryogenian – present, 665–0Ma Had'n Archean Proterozoic Pha. | |
|---|---|
| Scientific classification |
|
| (unranked): | Unikonta |
| (unranked): | Obazoa |
| (unranked): | Opisthokonta |
| (unranked): | Holozoa |
| (unranked): | Filozoa |
| Kinrick: | AnimaliaLinnaeus, 1758 |
| Phyla | |
| Subkingdom Parazoa Porifera Placozoa Subkingdom Eumetazoa Radiata (unranked) Cnidaria Ctenophora Trilobozoa † Bilateria (unranked) Proarticulata † Xenacoelomorpha Mesozoa (unranked) Monoblastozoa Nephrozoa (unranked) Superphylum Deuterostomia Chordata Echinodermata Hemichordata Vetulicolia † Protostomia (unranked) Chaetognatha (incertae sedis)[1] Orthonectida Superphylum Ecdysozoa Arthropoda Kinorhyncha Loricifera Nematoda Nematomorpha Onychophora Priapulida Tardigrada Superphylum Platyzoa Acanthocephala Cycliophora Gastrotricha Gnathostomulida Micrognathozoa Platyhelminthes Rotifera Superphylum Lophotrochozoa Annelida Sipuncula Mollusca Nemertea Brachiopoda Bryozoa Phoronida Hyolitha † Entoprocta Dicyemida |
Ainimals is multicellular, eukaryotic organisms o the kinrick Animalia (forby cried Metazoa). Aw ainimals are motile, meanin thay can muiv spontaneously an independently, at some pynt in thair lifes. Thair body plan hidnerly becomes fixed as thay develop, tho some unnergang a process o metamorphosis later on in thair lifes. Aw ainimals is heterotrophs: thay maun ingest ither organisms or thair products for sustenance.
Maist kent ainimal phyla appeared in the fossil record as marine species in the Cambrian explosion, aboot 542 million year syne. Ainimals is dealt intae sindry sub-groups, some o whilk is: vertebrates (birds, mammals, amphibians, reptiles, fish); molluscs (clams, eysters, octopuses, ink-fish, snails); arthropods (meggie-mony-feets, jennie-hunder-feets, insects, speeders, scorpions, keavies, lapsters, saund-clapper); annelids (yirdwirms, gells); spoonges; an loch-livers.
- ↑ Harzsch, S.; Müller, C. H. (18 Mey 2007). "A new look at the ventral nerve centre of Sagitta: implications for the phylogenetic position of Chaetognatha (arrow worms) and the evolution of the bilaterian nervous system". Frontiers in Zoology. 4: 14. doi:10.1186/1742-9994-4-14. PMC 1885248. PMID 17511857.