📊 Biology
Q. Which process causes widening of blood vessels?
  • (A) Vasoconstriction
  • (B) Vasodilation
  • (C) Coagulation
  • (D) Filtration
✅ Correct Answer: (B) Vasodilation

Explanation: Vasodilation reduces resistance and lowers blood pressure.

Explanation by: Roshan
Vasodilation reduces resistance and lowers blood pressure.

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