1. Who discovered the circulation of blood in the human body?

    Who discovered the circulation of blood in the human body?

    7
  2. What is the chemical formula for acetic acid?

    What is the chemical formula for acetic acid?

    8
  3. CAN YOU FIND THE ODD ONE OUT? CAN YOU SCORE 30/30?

    CAN YOU FIND THE ODD ONE OUT? CAN YOU SCORE 30/30?

    7