Across
- 2. derived gills= 2 chambered heart
- 5. used for chemosensory in the Opistobranchs
- 7. this type of mass contains the jaw, the radula, and the odontophore of mollusca
- 9. types of palps/paired structures both left and right and inner and outer, lateral to the mouth
- 11. cyst formation in highly variable environments, when an organism can pump out excess water
- 13. lateral folds of the foot
- 15. in squid, thin internal structure that is keratin-based, a form of internal shell
- 17. sexual intercourse
- 19. mantle cavity lateral or posterior)leading to reduction/loss of shell
- 20. opening/ breathing pore in the mantle of Pulmonata
- 23. elongated feeding tube, suction generating, acts as harpoon for feeding
- 27. expulsion that filter-feeding bivalves use in order to get rid of suspended particles
- 28. blood vessels pump blood to the heart
- 32. chemical & tactile receptor organ
- 33. tubular fluid filled cavity that holds the muscular eversible proboscis of a nemertean
- 34. tubular structure/rigid case in Class Monogononta
- 35. feathery gills; sometimes extensions of the digestive system
- 38. formed from ventral body wall muscles used for locomotion in molluscs
- 39. style/rod of glycoprotein that works with the gastric shield to break down and digest food
- 42. rotifers' ability to change their morphology based on environmental stimuli
- 43. calcified tube and its enclosed stand of vascularized tissue thatspirals through the shell from visceral mass, traversing all shell chambers. Controls volume of liquid in shell chambers. Maintain neutral buoyancy as it grows and also in vertical migrations
- 45. free living larval stage characterized by a ciliated velum
- 46. thick, lateral mantle with calcareous spicules in Class Polyplacophora
- 47. specialized sensory structures in class Polyplacophora
Down
- 1. tiny colored cells used for camouflage in cephalopods
- 3. leads to complex, highly differentiated brains
- 4. gills, used for gas exchange and sometimes feeding
- 6. right coiled gastropod
- 8. blood vessels pump blood to the gills
- 10. visceral mass and nervous system become twisted 90 to 180 degrees during development
- 12. funnel derived from the foot in which water flows through (used for locomotion)
- 14. primitive gills= 3 chambered heart
- 16. reflected cells in cepholopods
- 18. excretory organ containing nephrostome and renal pore
- 21. fixed number of cells in body,then mitosis stops
- 22. muscles in hinged shells of bivalves
- 24. Proteinaceious shield on the foot
- 25. paired sensory organs near gills
- 26. series of large sinuses/ body cavity that blood flows through
- 29. pulling organic matter from the sediment, mucous brings the material up to the mouth for ingestion
- 30. worm-like
- 31. light organs used for bioluminescence in some cephalopoda
- 36. non-swimming, shelled external parasitic larva which form on parent's gills in freshwater molluscs
- 37. secretes calcareous epidermal spicules, plates or shells
- 40. cuticular band of teeth in the esophagus
- 41. left coiled gastropod
- 44. jaws in the muscular pharynx of phylum Rotifera