ZOO 1010 Study Guide
Chapter 11
Chapter 11 – Annelids
1. Characterize the Phylum Annelida. What is the basis of the name?
2. What is metamerism?
3. How are setae (or chaeta used) functionally? What terminology is used to describe numbers/length of
setae/chaeta?
4. What modes of feeding do various annelids utilize?
5. What ecological and economic roles do they fill?
6. What are functions of parapodia?
7. How is the head specialized in various species of annelids, particularly the prostomium.
8. How are annelids able to produce peristaltic contraction? What muscle layers to annelids possess?
9. Characterize the Class Errantia. What are examples of “errant” annelids?
10. Characterize the Class Sedentaria? What are examples of “sedentary” annelids?
11. How do earthworms reproduce?
12. How are leeches specialized to parasitize a blood meal from a host?
Key Terms – setae, chaeta, metamerism, prostomium, peristomium, pygidium, septa, hydrostatic skeleton,
parapodium, radioles, typhlosole, nephridia, clitellum, cocoon, hirudin
Note: This study guide may not be all inclusive of material covered. The student is responsible for learning all
material covered in lecture and as expected as part of this course.