Phylum Arthropoda
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Phylum Arthropoda

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Arthropoda

Arthropoda

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Phylum Arthropoda Presentation Transcript

  • 1. PHYLUM ARTHROPODA ETYMOLOGY Gk. “arthros” – joint + “podos” – foot
  • 2.
    • Common throughout marine, freshwater, terrestrial, and even aerial environments
    • Body usually segmented and jointed externally (divided into 3 major parts: head , thorax, abdomen ) with appendages that are equipped for feeding, sensory reception, defense, and locomotion ; with h ardened exoskeleton containing chitin and molted at intervals
    GENERAL CHARACTERISTICS
  • 3.
    • Complete digestive tract ( mandible -chewing or proboscis - sucking) with a dorsal heart and a ventral nervous system
    • Respiration through gills, trachea, book lungs or body surface
    • Sensory organs include antennae and hairs, simple and compound eye
    • Reproduces (mostly sexually), one to several larval stage
  • 4.
    • The muscle system is more or less assisted by hydraulics originated from the blood pressure created by the heart
    • Respiration through gills, trachea, book lungs or body surface
    • With open circulatory system. Haemolymph that contains haemocyanin , a copper-based oxygen-carrying protein
  • 5.
    • SUBPHYLUM TRILOBITOMORPHA
    • CLASS TRILOBITA – Trilobites
    • SUBPHYLUM CHELICERATA
    • CLASS ARACHNIDA – Spiders, Scorpions, Ticks
    • CLASS MEROSTOMATA – Horseshoe crabs
    • CLASS PYCNOGONIDA – Sea spiders
    REPRESENTATIVE ORGANISMS: Ants, Butterfly, Grasshopper, Beetles, Lobsters, Spiders etc.
  • 6.
    • SUBPHYLUM MARIAPODA
    • CLASS CHILOPODA – Centipedes
    • CLASS DIPLOPODA - Millipedes
    • SUBPHYLUM HEXAPODA
    • CLASS INSECTA – Insects
    • SUBPHYLUM CRUSTACEA
    • Class Branchiopoda – Brine shrimp
  • 7.
    • CLASS CEPHALOCARIDA – Horseshoe shrimp
    • CLASS MAXILLOPODA – Barnacles, and
    • Fish lice
    • CLASS MALACOSTRATA – Lobsters, Crabs, and Shrimps
  • 8.
      • CLASS CRUSTACEA
      • Lobsters, Crabs and Shrimps
    American lobster Homanus americanus Blue crab Callinectes sapidus
  • 9. CLASS INSECTA Ants, Beetles and Bugs ORDER HYMENOPTERA Fire ant Solenopsis invicta ORDER ORTHOPTERA Migrating locust Locusta migratoria ORDER COLEOPTERA Weevil Beetle
  • 10. MAJOR PARTS OF AN INSECT
  • 11. Insects that have piercing and sucking mouthparts are called BUGS while BEETLES are insects distinguished as those having forewings modified into hard wing cases that cover and protect the hind wings and abdomen!
  • 12. CLASS ARACHNIDA Spiders, Ticks and Scorpions Wolf spider Lycosa tarentula
  • 13. The Goliath Bird-eating tarantula ( Theraphosa blondi) But can grow as much as 1 ft in diameter!
  • 14. CLASS MEROSTOMATA Horseshoe crabs
  • 15. CLASS CHILOPODA Centipedes Peruvian Giant
  • 16. CLASS DIPLOPODA Millipedes Harpaphe haydeniana
  • 17. CLASS TRILOBITA Trilobites
  • 18. LIFE CYCLES OF SOME INSECTS
  • 19. LIFE CYCLE OF A DRAGONFLY (CLASS INSECTA ORDER ODONATA)
  • 20. LIFE CYCLE OF A FRUIT FLY (CLASS INSECTA ORDER DIPTERA)
  • 21. LIFE CYCLE OF A BUTTERFLY (CLASS INSECTA ORDER LEPIDOPTERA) (Larva) Caterpillar (Pupa) Chrysalis
  • 22. LIFE CYCLE OF A GRASSHOPPER (CLASS INSECTA ORDER ORTHOPTERA)
  • 23. MIMICRY AND CAMOUFLAGE Mimicry - take on the appearance of (another animal or plant) in order to deter predators Camouflage - the natural coloring or form of an animal which enables it to blend in with its surroundings
  • 24. ECOLOGICAL IMPORTANCE
    • Serve as food source for both animals and humans
    • Aid in the propagation of plant species by means of cross-pollination
    • Control the population of some harmful organisms
    • Some act as scavengers or saprotrophs