After reading this chapter and analyzing the content, it is assumed that you can:

1. Describe a cuticle.
   
   
2. Define ecdysis.
   
   
3. Describe a hydrostatic skeleton.
   
   
4. Contrast a solenocyte from a flame cell protonephridium.
   
   
5. Describe the peculiar features of the body–wall muscles in nematodes.
   
   
6. Describe how hydrostatic pressure in the pseudocoelomic fluid affects functioning of the body–wall muscles in nematodes.
   
   
7. Explain how the interaction of cuticle, body–wall muscles, and pseudocoelomic fluid affects the locomotion in nematodes.
   
   
8. Explain the feeding and defecation processes in nematodes.
   
   
9. Outline the life cycles of Ascaris lumbricoides, hookworm, Enterobius vermicularis, Trichinella spiralis, Wuchereria Bancrofti and describe where each in its adult form is found in the human body.
   
   
10. Outline the life cycle of gordiid nematomorph.
    
    
11. Compare and contrast nematodes and nematomorphs.
    
    
12. Describe the habitat of kinorhynchs.
    
    
13. Contrast a hemocoel from a true coelom.
    
    
14. Describe the habitat of tardigrades.
    
    
15. Explain why cryptobiosis in tardigrades increases survival rate.
    
    
16. Describe the defining features of the two major protostome clades.
    
    
17. Know the predominant body plan for members of each protostome phylum.