Cation

Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..

Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..

According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..

Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..

Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..

Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..

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