Across
- 1. Motor ________ are carried from the brain to each of the segments
- 4. Internal wall between segments
- 5. Ring-like structures along the organism's body
- 7. ___________ have some shared characteristics with Annelids
- 8. Class that lacks both setae and parapodia
- 9. Used for gas exchange and movement
- 10. Collecting place for waste-laden body fluids
- 11. The system that allows the annelids to breathe
- 12. Some _____ are extensions of parapodia
Down
- 1. Bristles that help with gripping
- 2. Leeches have muscular _____________ at both ends of the body
- 3. Five muscular blood vessels serve as __________
- 6. Microscopic larvae with bands of cilia
- 10. __________ ganglia are nerve clusters that form a primitive brain