4) Which of the following labelled parts of the circulatory system has the highest
concentration of oxygen?A) P and Q B) Q and S C) R and P D) S and R
Answers
Answered by
2
It would be better to provide us with a diagram of the question. We don't know what the letters are referring to.
Answered by
1
Answer:
where is the diagram to explain it to others
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