Arthropods

2. A hard, protective shell covering the dorsal side of some arthropods, particularly
5. as sensing vibrations, detecting predators, or aiding in navigation
6. food or aiding in feeding.
13. eyes: Eyes composed of multiple individual visual units called ommatidia, found in many
14. and sometimes respiration.
16. of tubes (tracheae) that deliver oxygen directly to tissues.
18. The fused head and thorax region found in many arthropods such as crustaceans and
22. system: A respiratory system found in insects and some other arthropods, consisting of a
23. A hard external skeleton that provides support and protection for arthropods, made
25. Appendages located behind the mandibles in many arthropods, often involved in
26. providing a wide field of view and detecting motion.
27. including insects, crustaceans, arachnids, and myriapods.

1. as touch, smell, and taste.
3. like crabs and lobsters.
4. of a book, allowing for gas exchange.
7. The posterior body region of arthropods, typically housing internal organs and often
8. lungs: Respiratory organs found in some arachnids, consisting of parallel folds resembling the
9. A phylum of invertebrate animals characterized by their jointed limbs and segmented
10. of chitin.
11. Sensory appendages found on the heads of many arthropods, used for detecting stimuli
12. The process of shedding the exoskeleton to allow for growth in arthropods, often
15. Jaw-like mouthparts found in many arthropods used for chewing and manipulating food.
17. A subphylum of arthropods characterized by having chelicerae, including spiders,
19. Paired appendages found on the rear segments of many arthropods, serving various functions
20. ticks, and horseshoe crabs.
21. by the formation of a new, larger exoskeleton.
24. Paired appendages found on the abdomen of many crustaceans, used for swimming,
27. appendages or structures for various functions.