The conversion of nitrates into nitrogen gas which is then released into the atmosphere. This is caused by bacteria and how they obtain their energy. A small amount is converted to usable forms by lightning in a process called atmospheric nitrogen fixation...
Learn how the way genes control and determine every aspect of the body. This lesson uses lac operon as an example. ..
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This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly gen..
Life, as we know it today, is presumed to have started in the sea and many of them were likely eukaryotic animal-like or..
The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..
The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..
Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..
