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  9. Q18

HPPSC HPAS 2019 · Question 18 of 100

In which group of animals, coelom is filled with blood?

General Science

  1. AAnnelida
  2. BArthropodaCorrect
  3. CNematoda
  4. DEchinodermata

Answer: B. Arthropoda

Explanation

Arthropods have an open circulatory system in which the coelom (haemocoel) is filled with blood (haemolymph).

Source: HPPSC HPAS (Pre) 2019 GS Paper-I (theexampillar.com official answer key)

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