Key PointsEarly Earth's atmosphere contained carbon dioxide, methane, nitrogen and water vapor, but it was virtually devoid of free oxygen.The ...

Explore 25 biology facts the future will forget as science evolves. From DNA's 'blueprint' to mitochondria's 'powerhouse,' ...

Photosynthesis slows down or stops if the conditions aren’t sufficient enough. Play this game to see how a seed or a plant is affected by changing how much water, sunlight and carbon dioxide it gets.

Try out this experiment in Atomic Labs. Go to the Biology lab and try the light intensity and photosynthesis experiment. Leave for five minutes for the pondweed to acclimatise to the new light ...

Cyanobacteria—ancient microbes that oxygenated Earth and made complex life possible—are still revealing surprises billions of ...

Photosynthetic bacteria helped shape planet Earth. Among them are cyanobacteria that produced the oxygen in the atmosphere ...

When most homeowners see a declining or yellowing plant or tree, an insect or disease problem usually comes to mind.

A specific cellular mechanism regulates the protein balance of plants, thereby influencing how they respond to environmental ...

Respiration is the physiological process through which oxygen in the environment can be exchanged with carbon dioxide from an organism. This process requires specialized organs such as the lungs or ...

Long-term T-cell memory can be attributed to the following characteristics of memory T-cell populations compared with naive T-cell populations: an increased frequency of antigen-specific precursors ...

I’ve been running trail cameras since film-based models were all the rage the early 1990s. I remember walking laps around the local Walmart, waiting for the one-hour photo lab to process my prints.

The Krebs cycle is named after its discoverer, Hans Krebs. It is also known as the citric acid cycle or the tricarboxylic acid cycle. It is a series of chemical reactions required for cellular ...