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Exposed: LUCA and the Junk Science-Fueled War Against God
A fast evolution
Scientists as far back as biologist Charles Darwin have proposed that all living things evolved from a common origin, which sits at the base of the family tree of life. The organism would possess genes and components present in all living forms today, such as ribosomes, certain proteins or enzymes important for energy, Moody said.
It may be hard to imagine complicated life forms on early Earth. Oxygen was low and asteroids may have been pelting the baby planet’s surface. Despite those harsh conditions, a microbe may have persisted, giving rise to all life we see today.
his is the Last Universal Common Ancestor, or LUCA.
In the most extensive analysis of the organism to date, scientists propose in a new study that this hypothesized ancestor was more sophisticated than previously known — thought to possess an immune system to fight off viruses, for instance.
The team said LUCA appeared around 4.2 billion years ago, shortly after Earth was thought to be habitable, suggesting it evolved even quicker than previous estimates and survived through tumultuous times on the planet. The findings could help us understand more about life on this planet and others: What if it doesn’t take long to kick-start life?
“All life on Earth is related, from all animals, plants, fungi, protists to every single type of bacteria that exists. They all have this common ancestor,” said Edmund Moody, lead author of the new study. “We have this idea that this was a fairly complex organism, already possibly by the time of like 4.2 billion years ago
https://www.washingtonpost.com/climate-environment/2024/08/03/common-ancestor-luca-research/
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