Organisms need carbon to make all sorts of biological molecules including lipids, carbohydrates, and proteins. Just like we saw with nitrogen and phosphorus, carbon is transferred around ecosystems in a cycle called the carbon cycle. The carbon cycle The Earth's atmosphere is about 0.04% carbon dioxide (CO2), which is where we will start the carbon... Continue Reading →
The Nitrogen Cycle – Nutrient Cycles Ep 1
Nitrogen is an essential element for living organisms. It is needed to make proteins, nucleic acids and ATP. The nitrogen cycle shows how this element is transferred between different parts of an ecosystem. In this article we will look at the four major steps and the microorganisms involved in the processes. The nitrogen cycle The... Continue Reading →
