Ecología de la Comunicación
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Author(s): Ramón Navarrete-Galiano Rodríguez

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6.1 Introduction

We have learnt that part of the reason the heart pumps blood around is to make sure that the body gets a fresh supply of oxygen. So in the same way that our hearts need to keep beating, we need to keep breathing oxygen into our lungs to survive. But what is the function of oxygen? Why does our body need oxygen, and what does it do with it once we have breathed it in? These are some of the questions that we will examine in first part of this section.

In the second part of this section, w
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