Identify if the following structures are defining the lamprey as a chordate, a v
ID: 83637 • Letter: I
Question
Identify if the following structures are defining the lamprey as a chordate, a vertebrate, or if a structure is a chordate symplesiomorphy
1. Brain
2. Branchial basket cartilages
3. Buccal funnel
4. Caudal fin
5. Cranial cartilages
6. Dorsal fin
7. External gill slits
8. Gills
9. Horny teeth
10. Internal gill slits
11. Liver
12. Median naris
13. Mouth
14. Myomere
15. Notochord
16. Pineal eye
17. Respiratory tube
18. Spinal cord
19. Tongue
My guess is the notochord is a chordate synapomorphy and the rest is vertebrate traits.
Explanation / Answer
yes your guess is write , notochord is a chordate synapomorphy and rest all are vertebrate traits.
so in above mentioned list only notochord is a chordate synapomorphy and rest are all vertebrate traits.