Across
- 3. System of tiny tubes for direct gas exchange in hexapoda
- 5. Arthropods with book lungs/ trachea
- 8. Lipid protein with lipid layers underneath that is water impermeable and pierced by sensory hairs & glandular openings
- 9. A process where old cuticle is partially degraded by enzymes & split
Down
- 1. a type of insect development with complete metamorphosis, characterized by four distinct life stages: egg, larva, pupa, and adult
- 2. Openings in the heart that allow blood to reenter after circulation
- 3. groupings of the body like the head thorax and abdomen
- 4. External openings that serve as exit and entry points for the respiratory system
- 6. jointed and hardened chitinous exoskeleton with intrinsic musculature produced by epidermis
- 7. Simple eye structure