Science, asked by srijit9046, 2 months ago

please give me the answers...​

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Answered by geethika200716
2

Answer:

1. organ system

2. carbon dioxide

3. auricles

4. concentration

5. RBC

Explanation:

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Answered by ajha46848
3

Answer:

1. organ system

2. carbon dioxide

3. ventricles

4. concentration

5. WBCs

Explanation:

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