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Arthropod Life Processes

Arthropod Life Processes. Cuticle (Exoskeleton). Ecdysis (Molting). Molting in Decapods. Molting in Insecta. Molting & Growth. With each molt an arthropod grows 10-20% in size Molting is hormonally and environmentally controlled. Visual System. Vision System. Phylum Arthropoda.

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Arthropod Life Processes

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  1. Arthropod Life Processes

  2. Cuticle (Exoskeleton)

  3. Ecdysis (Molting)

  4. Molting in Decapods

  5. Molting in Insecta

  6. Molting & Growth • With each molt an arthropod grows 10-20% in size • Molting is hormonally and environmentally controlled

  7. Visual System

  8. Vision System

  9. Phylum Arthropoda Subphylum Crustacea

  10. Subphylum Crustacea • 1 pr appendages on each segment • 2 pr maxillae • 1 pr mandibles • 2 pr antennae

  11. SP Crustacea, Class Branchiopoda Order Notostraca (tadpole shrimp) • Flattened appendages • Central body appendages serve respiratory function (gill-like) Order Anostraca (fairy shrimp) Order Cladocera(water fleas – Daphnia)

  12. SP Crustacea, Class Maxillopoda • Subclasses Ostracoda Branchiura Copepoda

  13. SP Crustacea, Class Maxillopoda Gooseneck barnacles • Subclass Cirripedia Acorn barnacles

  14. SP Crustacea, Class Maxillopoda Subclass Cirripedia Barnacles on a whale

  15. SP Crustacea, Class Malacostraca Order Isopoda Order Amphipoda Parasitic marine isopod

  16. SP Crustacea, Class Malacostraca • Krill • Major contributor to zooplankton • Food source for baleen whales Order Euphausiacea

  17. SP Crustacea, Class Malacostraca Order Decapoda

  18. Subphylum Crustacea • Class Brachiopoda • Order Notostaca • Order Cladocera • Order Anostraca • Class Maxillopoda • Subclass Branchiura • Subclass Copepoda • Subclass Ostracoda • Subclass Cirripedia • Class Malacostraca • Order Amphipoda • Order Isopoda • Order Euphausiacea • Order Decopoda

  19. Crustacean Segmental & Appendage Morphology Antenna Walking legs

  20. External Features of a Decapod

  21. Parts are parts

  22. Decapod Internal Anatomy

  23. Circulatory & Respiratory Systems

  24. Excretory Systems

  25. Crustacean Reproduction & Development

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