Q. Which of the following statements is not correct?
  • (A) Deoxygenated blood is poured into right atrium of heart.
  • (B) The excretory units of flatworms are flame cells.
  • (C) Human kidney has about 1 million nephridia
  • (D) Tracheids and vessels are non-living conducting tissues.
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βœ… Correct Answer: (C) Human kidney has about 1 million nephridia

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