Class 9
Chapter 7 Class 9 - Diversity In Living Organisms
  • The body is triploblastic, segmented, and bilaterally symmetrical.
  •  There is an open circulatory system , and so the blood does not flow in welldefined blood vessels.
  • They exhibit organ level of organization.
  • The coelomic cavity is blood-filled.
  • They have jointed legs (the word ‘arthropod’ means ‘jointed legs’).
  • The body is divided into head, thorax, and abdomen.

For Example: Prawns, butterflies, houseflies, spiders, scorpions and crabs

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo