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1. This animal is in the Phylum ____________.
2. Which letter is ventral?
AB
C
D
3. Which letter is anterior?
AB
C
D
4. The arrows are pointing to individual sections called ____.
5. What is the purpose of this structure?
6. What is the purpose of this structure?
7. How does this animal exchange gases?
8. The worm is covered by this thin outer layer. What is the purpose of this layer?
9. What are these small, dark organs? (5 total)
10. What is this muscular structure called?
11. What does this structure do?
12. What does this animal eat?
13. This thin-walled sac is the _____.
14. What is the purpose of this sac?
15. This muscular organ is the _____.
16. What is the purpose of this organ?
17. This long tube extends all the way back to the anus. It is the _____.
18. This thin dark-red tube extends the entire length of the worm. It is the _____.
