Standard Science Primary 5 Systems

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

A From the heart to the lungs.
B From all parts of the body to the heart.
C From the lungs to the heart.
D From the heart to the rest of the body only.
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Worked Solution

Step 1: Blood picks up oxygen in the lungs. Step 2: Oxygen-rich blood then travels from the lungs back to the heart. Step 3: The heart then pumps this oxygen-rich blood to the rest of the body.

Correct answer: From the lungs to the heart.

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