Across
- 1. The tough material that makes up an arthropod’s exoskeleton.
- 3. Divided into separate body sections.
- 4. The natural place where an organism lives.
- 8. The rear body section of many arthropods.
- 9. Arthropods that mostly live in water, like crabs and lobsters.
- 11. The transfer of pollen that helps plants reproduce.
- 13. The early stage of some insects that looks different from the adult.
- 15. The system that moves fluids through an organism’s body.
- 17. A major category used to classify organisms.
- 18. A poisonous substance some arthropods use to capture prey.
- 19. A process where an animal changes form as it grows.
Down
- 2. A type of arthropod that usually has six legs and three body parts.
- 5. An animal with jointed legs, a segmented body, and a hard outer covering.
- 6. A group of arthropods with eight legs, such as spiders and scorpions.
- 7. Tubes in land arthropods that carry air into the body.
- 8. A body part such as a leg or claw used for movement or grabbing food.
- 10. Organs used by aquatic animals to breathe underwater.
- 12. The middle section of an arthropod’s body.
- 14. The phylum that includes all arthropods.
- 16. A hard outer skeleton that protects an arthropod and prevents it from drying out.