Can someone help me with my flatworms and roundworms review sheet thank you (zoology)

6. Tapeworm
7. 40ft
8. The hooks are the things at the top that look like hair, the neck thing are those circles at the top, and I'm not sure about the other two
9. Nematoda
10. Cestode
11. Platyhelminthes
12. Turbellaria
13. Trematoda
14. Monogenea