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Body Fluids and Circulation — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYBody Fluids and Circulation1 Mark
MCQ
Which of the following organisms has an open circulatory system?
  • A
    Fish.
  • B
    Frog.
  • C
    Crocodile.
  • D
    Hydra.
✓

Answer

  1. Hydra.

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