1
											2
		3		4				5		6
																		7
							8
															9
	10
											11
							12
				13
14																				15
			16										17
															18							19
															20
																21

Across 1. Has eight legs w/2 body segments 6. Mollusk that moves on stomach 8. Large head, uses propulsion 9. Includes earthworms 10. Has ten or more appendages and two antenna 12. Shark, skate, or ray fish type 14. One pr. legs per body segment; a predator 16. Most are parasitic, except planarian 17. Platypus or echidna 18. Six legs, three body segments 20. A bag with holes 21. Lays leathery eggs

Down 1. Has jointed appendages 2. provides milk to young 3. has a backbone 4. Lamprey or hag fish type 5. Without a backbone 7. Class of fish that Nemo is 9. Lays eggs in water, lives on land 11. Has hollow bones; hard-shelled eggs 13. Two pr. legs per body segment; eats detritis 14. Uses stinging cells 15. Another term for round worm 17. Soft body w/mantle 19. Clam or mussel