Standard Science Primary 5 Systems

Which of the following correctly describes the flow of blood that is rich in oxygen in the human body?

A Other parts of the body → Heart → Lungs
B Lungs → Heart → Other parts of the body
C Heart → Lungs → Other parts of the body
D Lungs → Other parts of the body → Heart
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Worked Solution

Step 1: Blood gets oxygen in the lungs. Step [2-9]: Oxygen-rich blood returns to the heart. Step [2-9]: The heart pumps this oxygen-rich blood to the rest of the body.

Correct answer: Lungs → Heart → Other parts of the body

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