A hidden mineral trap in ancient ocean sediments may have starved early marine life of phosphorus, the nutrient most critical ...

The rate of uptake of oxygen by dead algal cells is independent of the algal cell concentration. The rate of uptake by young cells is greater than that by old cells. Rates increase with temperature up ...

A recent Finnish study has found that measuring adolescents' maximal oxygen uptake often requires a brief verification phase to ensure reliable results. The researchers also note that even small ...

Aerobic respiration began hundreds of millions of years earlier than previously thought, a new study suggests. Oxygen is a vital and constant presence on Earth today. But that hasn’t always been the ...

Global climate change, fueled by skyrocketing levels of atmospheric carbon dioxide, is siphoning oxygen from today’s oceans at an alarming pace — so fast that scientists aren’t entirely sure how the ...

A rapid increase in oxygen levels about 2.5 billion years ago was linked to the evolution of photosynthetic organisms, but geological factors likely started this process. Earth’s early atmosphere was ...

A ground-breaking study has shown it takes a matter of hours for billions of minute plastic nanoparticles to become embedded throughout the major organs of a marine organism. The research, led by the ...

To culture aerobic cells, a system must contain an adequate supply of dissolved oxygen. Tracking the oxygen uptake by the cells—crucial as it is—takes more effort than might be expected, but ...

Oxygen, the molecule that supports intelligent life as we know it, is largely made by plants. Whether underwater or on land, they do this by photosynthesizing carbon dioxide. However, a recent study ...

Global climate change, fueled by skyrocketing levels of atmospheric carbon dioxide, is siphoning oxygen from today's oceans at an alarming pace -- so fast that scientists aren't entirely sure how the ...