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Of the 10 trillion cells in the human body, only about 1 trillion of them are Homo sapiens. The other 9 trillion are microbes living in every nook and cranny in and on the body. Nearly all of them are symbiotic, producing what nutritionists call "non-essential" amino acids and fatty acids (which we don't need in our food because microbes make them for us), important co-factors and vitamins, and crowding out or even fighting away pathogens.
The most common microbe by far is an intestinal Archaeon named Methanobrevibacter smithii, the main source of methane in human flatulence (necessary to keep the large intestinal contents moving; a lack of M. smithii can cause fatal levels of constipation). At numbers greater than 1 trillion, there are more M. smithii cells in the human body than there are H. sapiens cells.
I read a quote that was titled "Cheaney's Second Law": "We are not so much human as we are walking, talking bacterial ecosystems."
What else can I help you with?
What is the most common mineral found in the human body?
The most common mineral found in the human body is calcium.
what is the most common substance in the human body?
Water is the most common molecular subsance found in the human body(~98%). and phosphorous is the most abundant element in human body.
What is the most common specialised cell?
Red blood cells are the most common specialized cells in the human body. They are responsible for carrying oxygen to tissues and removing carbon dioxide from the body.
What is the most known cells in a human?
the most known cell in your body is your brain cell.
What is the specific most common name for the study of the human body?
The specific most common name for the study of the human body is anatomy.
Which molecule is most common im the human body?
Water is the most common molecule in the human body, accounting for about 60% of total body weight.
Which element is most common in both Earth's crust and the human body?
the most common thing on earth crust as well as in human body is water .
Which molecules is most common in the human body?
Water. It makes up about 65% of the human body.
What is the most common way to examine the human body?
The common way to examine human body is to do inspection, palpation, percussion and auscultation.
What Is the most common mineral in the human body.?
calcium
Is the most common mineral in the human body.?
calcium
What molecule is the most common in the human body?
H2o
