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STD 11 - 15. Body fluids and criculations — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 15. Body fluids and criculations1 Mark
MCQ
During systole
  • A
    Auricles and ventricles contract simultaneously
  • ✓
    Auricles and ventricles contract separately
  • C
    Only auricles contract
  • D
    Only ventricles contract
✓

Answer

Correct option: B.
Auricles and ventricles contract separately
b
It’s obvious.

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