 
 <prompt> ```Di Bilateria or bilaterians, or triploblasts, na animals we get bilateral symmetry, i.e., dem get head ("anterior") and tail ("posterior") as well as back ("dorsal") and belly ("ventral"); so dem get left side and right side. For contrast, animals wey get radial symmetry like jellyfish get topside and downside, but dem no get front or back wey you fit identify.

Di bilateria na major group of animals, wey include plenty phyla but no be sponges, cnidarians, placozoans and ctenophores. For di most part, bilateral embryos dey triploblastic, dem get three germ layers: endoderm, mesoderm, and ectoderm. Nearly all of dem dey bilaterally symmetrical, or almost so; di most notable exception na di echinoderms, wey get near-radial symmetry as adults, but dem dey bilaterally symmetrical as larvae.

Except for some phyla (e.g. flatworms and gnathostomulids), bilaterians get complete digestive tracts with separate mouth and anus. Some bilaterians no get body cavities (acoelomates, e.g. Platyhelminthes, Gastrotricha and Gnathostomulida), while others show primary body cavities (wey come from the blastocoel, as pseudocoel) or secondary cavities (wey appear "de novo", for example the coelom).

Di hypothetical most recent common ancestor of all bilateria dey call "Urbilaterian". The nature of di first bilaterian dey subject of debate. One side dey suggest say acoelomates give rise to other groups (planuloid-aceloid hypothesis by Graff, Metchnikoff, Hyman, or ), while di other side dey propose say di first bilaterian na coelomate organism and di main acoelomate phyla (flatworms and gastrotrichs) don lose body cavities secondarily (di Archicoelomata hypothesis and its variations like the Gastrea by Haeckel or Sedgwick, the Bilaterosgastrea by Gösta Jägersten , or the Trochaea by Nielsen).``` <response>: 1. Wetin dis article dey tok about?
2. Dem dey consider dem as animals?
3. Sponges dey part of dem?
4. Wetin else dem dey call?
5. Abi?
6. Wetin be di scientific name for tail?
7. Wetin about belly?
8. Dem get head?
9. Wetin be di other word for head?
10. All of dem get separate mouth and anus?
11. Wetin get germ layers?
12. How many layers?
13. Abeg name dem
14. Wetin be di most recent ancestor called?
15. Dey get anything wey no get front or back?
16. Wetin?
17. Wetin dem get?
18. Abeg give me examples of phyla.
19. Dem get digestive tract?
20. All di bilateria dey bilaterally symmetrical? 