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What is oldest living things on earth?

Answer : The oldest single-celled organisms on Earth are a class of creatures known as bacteria. With some species dating back more than 3 billion years, cyanobacteria, often known as blue-green algae, are thought to be some of the oldest living things on the earth.

In a process known as photosynthesis, cyanobacteria are able to transform sunlight into energy and oxygen. They can be found in a variety of landscapes, including deserts, freshwater lakes, and hot springs. Certain cyanobacteria species may even endure in harsh conditions like ice, salt pans, and volcanic vents.

While stromatolites, which are ancient rock-like structures created by the growth of cyanobacteria and other microbes, are among the oldest species known, cyanobacteria are among the oldest living entities on Earth. The bristlecone pine tree, which may live for more than 4,000 years, and some varieties of clams, which can live for more than 500 years, are two examples of individual plants and animals that can likewise survive for very long periods of time.

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