ESPM 42: Final Exam

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Across
  1. 1. Group characterized by molting exoskeletons, including insects and other arthropods.
  2. 7. A structure in female ins
  3. 8. A group of arthropods including spiders, mites, and scorpions.
  4. 11. The superclass that includes insects and related species.
  5. 12. A group of arthropods including millipedes and centipedes.
  6. 14. The outer waxy layer of the exoskeleton that prevents water loss.
  7. 15. The base of a phylogenetic tree, representing the common ancestor.
  8. 17. The order of insects known as beetles, with hard forewings called elytra.
  9. 19. Structures that deliver oxygen directly to tissues in insects.
  10. 21. The study of organisms within ecosystems.
  11. 24. The outer covering of an insect that provides structural support and protection.
  12. 25. The scientific study of insects, focusing on their behavior, ecology, and evolution.
  13. 26. Extinct marine arthropods important to evolutionary studies.
  14. 27. The insect order of bees, ants, and wasps, often social with specialized roles.
  15. 29. The insect order of true bugs, with piercing-sucking mouthparts.
  16. 30. The process of segment fusion to form functional body regions.
  17. 31. The nervous system structure running along the underside of an insect.
Down
  1. 2. A group of arthropods including crabs and shrimp.
  2. 3. A line on a phylogenetic tree showing evolutionary relationships.
  3. 4. The body region containing sensory organs and feeding structures.
  4. 5. Complete metamorphosis with distinct egg, larva, pupa, and adult stages.
  5. 6. Closely related organisms sharing a recent common ancestor.
  6. 8. A group of organisms descended from a common ancestor.
  7. 9. The hardened layer of the exoskeleton made of chitin.
  8. 10. Incomplete metamorphosis with nymphs resembling adults.
  9. 13. The insect order of flies, with a single pair of wings and halteres for balance.
  10. 16. The body region for locomotion, bearing legs and wings.
  11. 18. Diagrams showing evolutionary relationships and species divergence.
  12. 20. The body region involved in digestion and reproduction.
  13. 22. The order of butterflies and moths, characterized by scaly wings.
  14. 23. The insect circulatory fluid that transports nutrients but not oxygen.
  15. 28. The endpoint of a branch on a phylogenetic tree, representing a species.