Mollusks and Annelids Crossword KEY
| Across 3. used for propulsion in squid (2 words) - water jet 4. opening where wastes exit - anus 6. organ used to suck up dirt by worms - pharynx 7. similar to a snail, but without a shell - slug 9. organ that grinds food in the earthworm - gizzard 10. the covering of the body of mollusks - mantle 13. bristles on the ventral surface of worms - setae 14. 8 of these are found on an octopus - arms 15. related to earthworms, used in "bloodletting" - leech 18. has both male and female sex organs - hermaphrodite 20. class that contains octopus and squid - cephalopoda |
Down 1. a squid uses these to capture prey - tentacles 2. larval stage of mollusks and annelids - trochophore 5. a colorful sea dwelling gastropod - nudibranch 8. organs used for respiration in the squid - gills 11. a type of bivalve, makes pearls - oyster 12. the color of a poisonous octopus - blue 16. body cavity - coelom 17. organ that stores food in the earthworm - crop 19. the heart of the earthworm has five of these - arches |