Across

3. used for propulsion in squid (2 words)
4. opening where wastes exit
6. organ used to suck up dirt by worms
7. similar to a snail, but without a shell
9. organ that grinds food in the earthworm
10. the covering of the body of mollusks
13. bristles on the ventral surface of worms
14. 8 of these are found on an octopus
15. related to earthworms, used in "bloodletting"
18. has both male and female sex organs
20. class that contains octopus and squid

Down

1. a squid uses these to capture prey
2. larval stage of mollusks and annalids
5. a colorful sea dwelling gastropod
8. organs used for respiration in the squid
11. a type of bivalve, makes pearls
12. the color of a poisonous octopus
16. body cavity
17. organ that stores food in the earthworm
19. the heart of the earthworm has five of these