Standard Science Primary 5 Systems

Which of the following correctly describes the path of blood rich in oxygen?

A From the lungs to the heart, then to the rest of the body
B From the rest of the body to the heart
C From the heart to the lungs
D From the rest of the body to the lungs
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Worked Solution

Step 1: Oxygen is absorbed into the blood in the lungs. Step 2: This oxygen-rich blood flows back to the heart. Step 3: The heart then pumps this oxygen-rich blood to all parts of the body.

Correct answer: From the lungs to the heart, then to the rest of the body

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