Free BCAAâs are a little different in that they are. directly transported to the bloodstream through the. liver, while some exchange in the intestinal viscera and. go directly to the bloodstream also. Most all amino. acids can be degradated, broken down, in the liver. effectively, with the exception of BCAAâs.
They are the oldest form of life on earth. Microbe fossils date back more than 3.5 billion years to a time when the Earth was covered with oceans that regularly reached the boiling point, hundreds of millions of years before dinosaurs roamed the earth. Without microbes, we couldnât eat or breathe. Without us, theyâd probably be just fine.
Fossils of 3.5-billion-year-old microbial communities were discovered in Australia. Credit: Nora Noffke Scientists have found fossil evidence of ancient microbial communities that lived 3.5 billion years ago. The new fossils, described in the journal Astrobiology, may be among the most ancient fossil life forms ever found. This is one of the, or the, oldest fossils ever found. You've got a 3.5-billion-year-old ecosystem, said study co-author Robert Hazen, an earth scientist at the Carnegie Institution for Science in Washington, D.C.