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State PCS PYQPrelims 2022

BPSC – Combined Competitive Examination · Question 109

Which animal lacks red blood corpuscles?

  1. Earthworm
  2. Snake
  3. Peacock
  4. Frog
  5. None of the above / More than one of the above
Show answer & explanation

Answer: (A) Earthworm

Explanation

In earthworms, haemoglobin floats freely in the blood plasma instead of being packed in RBCs.

  • (A) Correct

    Correct: its haemoglobin is dissolved in plasma; it has no RBCs.

  • (B) Incorrect

    Wrong: has RBCs.

  • (C) Incorrect

    Wrong: has RBCs.

  • (D) Incorrect

    Wrong: has RBCs.

  • (E) Incorrect

    Wrong: only one of the options A–D is correct.