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

Across 3. A caterpillar is this stage in the life cycle of a butterfly 6. Invertebrates are d____. More than a million different kinds live on earth 8. When the two sides of a body looks the same, it is _____ symmetry 9. Stage where insect looks like an adult but is smaller 10. Arthropods hard outer layer is called this 13. A change into a new form 15. Major group of arthropods - includes spiders, scorpions 17. Snails, clams, squids belong to this phylum 18. Another word for backbone 19. A butterfly undergoes this type of metamorphosis

Down 1. Sea stars have this kind of symmetry 2. Sea jellies (jellyfish) have long, stinging ones 4. Spiders, lobsters, grasshoppers belong to this phylum 5. Can have 20 to 300 legs; can squirt venom with their two front claws 7. Major group of arthropods - 2 main body parts, large claws 11. The middle part of an insects body is called this 12. Sea stars belong to this phylum 14. Caterpillars form a cocoon during this stage 16. This group of invertebrates is asymmetrical 17. A crab sheds or ______ its shell as it grows.