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Single-celled microorganisms were the first forms of life to develop on Earth, approximately 3–4 billion years ago.
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Extremophiles have been known to survive for a prolonged time in a vacuum, and can be highly resistant to radiation, which may even allow them to survive in space
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Microbial intelligence (popularly known as bacterial intelligence) is the intelligence shown by microorganisms. The concept encompasses complex adaptive behaviour shown by single cells, and altruistic and/or cooperative behavior in populations of like or unlike cells mediated by chemical signalling that induces physiological or behavioral changes in cells and influences colony structures.
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Examples of microbial intelligence
1. The formation of biofilms requires joint decision by the whole colony.
2. Under nutritional stress bacterial colonies can organise themselves in such a way so as to maximise nutrient availability.
3. Bacteria reorganise themselves under antibiotic stress... further reading
Biofilms are ubiquitous. Nearly every species of microorganism, not only bacteria and archaea, have mechanisms by which they can adhere to surfaces and to each other.
Formation of a biofilm begins with the attachment of free-floating microorganisms to a surface. These first colonists adhere to the surface initially through weak, reversible van der Waals forces. If the colonists are not immediately separated from the surface, they can anchor themselves more permanently using cell adhesion structures such as pili.[5]
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The cell is the structural and functional unit of all known living organisms. It is the smallest unit of an organism that is classified as living, and is often called the building block of life.[1] Some organisms, such as most bacteria, are unicellular (consist of a single cell). Other organisms, such as humans, are multicellular. (Humans have an estimated 100 trillion or 1014 cells; a typical cell size is 10 µm; a typical cell mass is 1 nanogram.)...
further reading
Microbes must have consciousness!
No Single Hypothesis May Be Correct
Where viruses came from is not a simple question to answer. One can argue quite convincingly that certain viruses, such as the retroviruses, arose through a progressive process. Mobile genetic elements gained the ability to travel between cells, becoming infectious agents. One can also argue that large DNA viruses arose through a regressive process whereby once-independent entities lost key genes over time and adopted a parasitic replication strategy. Finally, the idea that viruses gave rise to life as we know it presents very intriguing possibilities. Perhaps today's viruses arose multiple times, via multiple mechanisms. Perhaps all viruses arose via a mechanism yet to be uncovered. Today's basic research in fields like microbiology, genomics, and structural biology may provide us with answers to this basic question.
Thurisaz
Microbes are highly intelligent. They have organised communities just like we do:
GetHyped
Thurisaz
Microbes are highly intelligent. They have organised communities just like we do:
Complex behavior can emerge from very simple rules. Bird flocking is a good example. I don't think they would be ranked as intelligent or conscious by any reasonable definition of those words.