Phylum Arthropoda

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This PPT is for F.Y.B.Sc students of course I Semester I, belonging to Mumbai University of Maharashtra India. You can email at sudesh_rathod@yahoo.co.in for further query.

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Phylum Arthropoda

  1. 1. COURSE I – FIRST SEMESTERPHYLUM ARTHROPODA Animals with jointed legs Compound eyes Chitinous exoskeleton Prof. S D Rathod
  2. 2. Arthropods Arthropoda is the largest group of the animal kingdom Bilaterally symmetrical, triploblastic and metamerically segmented Sexes are usually separate with sexual dimorphism Metamorphosis
  3. 3. Jointed legs
  4. 4. Compound eye
  5. 5. Compound eye in details
  6. 6. Crustacean Larvae Zoea Embryo Nauplius PhyllosomaMysisMegalopa Alima
  7. 7. Zoea larva
  8. 8. Zooplankton Cyclops CalanusDaphnia ZooplanktonKrill
  9. 9. Complete Metamorphosis
  10. 10. Incomplete metamorphosis
  11. 11. Class – Crustacea (animals with crusta)  They have five pairs of walking legs  Cephalothorax with crusta or carapace  Stalked compound eyes  antennules and antennae are present  Example - Spiny Lobster
  12. 12. Spiny Lobster
  13. 13. Several small crustaceans play roleof planktonsDaphnia Cyclops CalanusKrill  Zooplankton
  14. 14. Class – Insecta: Body divisible into head, thorax and abdomen Three pairs of thoracic walking legs Only antennae are present example is Beetle
  15. 15. Beetles
  16. 16. Class – Myriapoda Body divisible into head and trunk Mostly terrestrial; They have many pairs of walking legs. Each leg is seven jointed Head has a pair of antennae and compound eyes Example - Centipede
  17. 17. Centipede
  18. 18. Millipede
  19. 19. Class – Arachnid Animals with prosoma and opisthosoma Four pairs of walking legs Respiration is by book lungs
  20. 20. Spider
  21. 21. Black widow spider
  22. 22. Tarantula spider Largest spider
  23. 23. Scorpion  Scientists in the US have claimed that scorpion venom may help in the treatment of a wide range of cancers.  The Amazonian scorpion the most venomous of all the scorpions in the world and needs medical aid otherwise the person stung would sweat profusely and there would spasmodic movement of the body. In such an even an antidote is required.
  24. 24. Ticks  Tick Facts Ticks are blood-eating parasites that live and feed on mammals, birds and reptiles around the world.
  25. 25. Mites  Dust mites do not feed on blood but the dead skin cells and the in the dust.  Some live creating burrows in our skin causing scabies.

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