A quiz for all you budding biologists: off the top of your head, how many extant animal phyla can you name? I’ll recognise 35 and Wikipedia arbitrates: Phylum - Wikipedia. Your word is your bond. **My attempt below** 1. Chordata 2. Hemichordata 3. Echinodermata 4. Arthropoda 5. Mollusca 6. Priapulida 7. Annelida 8. Nematoda 9. Bryozoa 10. Brachiopoda 11. Rotifera 12. Priapulida 13. Platyhelminthes 14. Porifera 15. Cnidaria 16. Onychophora 17. Cycliophora (+2 which weren’t recognised: Cephalochordata and Pogonophora) How did you do?
I got to 19 (+ Mesozoa which isn't recognised anymore). 1. Porifera 2. Placozoa 3. Cnidaria 4. Ctenophora 5. Platyhelmintes 6. Ectoprocta 7. Bryozoa 8. Nemertea 9. Annelida 10. Mollusca 11. Rotifera 12. Nematoda 13. Nematodomorpha 14. Onychophora 15. Tardigrada 16. Arthropoda 17. Echinodermata 18. Hemichordata 19. Chordata And as expected I completely forgot a few I should have known such as Brachiopoda and Priapulida.
I'm not sure if one must name phyla in his head and check later if some one was forgotten to mention, or if instead one must look at the Wikipedia list and check how many fila are recognized and known by one self. If it's the last option (too lazy for try the first option hehe) I recognize: -Acanthocephala -Annelida -Arthropoda -Brachiopoda -Bryozoa -Chaetognatha -Chordata -Cnidaria -Ctenophora -Echinodermata -Hemichordata -Mollusca -Nematoda -Nematomorpha -Nemertea -Onychophora -Phoronida -Platyhelminthes -Porifera -Priapulida -Rotifera -Sipuncula -Tardigrada (total: 23) While the next phyla are either totally unknown for me or I vaguely remember the name, but I don't associate it with any image of a life form nor I could tell nothing about them from memory: -Acoelomorpha -Cycliophora -Entoprocta -Gastrotricha -Gnathostomulida -Kinorhyncha -Loricifera -Micrognathozoa -Orthonectida -Placozoa -Rhombozoa (total: 11)
