IN previous articles 1–3 attention was directed to the fact that high pressures of pure oxygen have a specific effect on the metabolism of cells of various kinds. In the tissues of higher plants the ...

Red blood cells (RBCs) are a type of blood cell whose role is to transport oxygen from the lungs to the peripheral tissues of the body. Oxygen diffuses from the alveoli of the lungs into the RBCs, ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Atmospheric oxygen levels have declined over the past 1 million years, although not nearly enough ...

In short: more carbon in the air does not guarantee more carbon in the wood. Between those two lies a living network of ...