Across
- 2. social winged insect that has a narrow waist and a sting
- 4. symmetry around a central axis
- 5. an external skeleton
- 8. primitive sedentary aquatic invertebrate with a soft porous body
- 11. animals without a backbone or bony skeleton
- 13. a mollusk with a single spiral shell
- 15. free-swimming marine coelenterate with a gelatinous bell- or saucer-shaped body
- 18. symmetry having a body displaying two similar halves
- 19. one hundred feet
- 20. invertebrate generally shaped like a star polygon
Down
- 1. a nectar-feeding insect with two pairs of large, typically brightly colored wings
- 3. eight-legged predatory arachnid
- 6. an elongated, fast-swimming cephalopod mollusk with ten arms
- 7. Cold blooded
- 9. chiefly nocturnal insect related to the butterflies
- 10. organism that is permanently attached to a surface
- 12. external skeleton
- 14. having a body displaying a disproportion between two or more parts
- 16. a tough-skinned terrestrial mollusk which typically lacks a shell and secretes a film of mucus for protection
- 17. Firm tissue that provides flexible support in animal skeletons.