2006-07-09 23:04:57 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Biology
The presence of E. coli and other kinds of bacteria within our intestines is necessary for us to develop and operate properly, and for us to remain healthy - E. coli, along with other species of bacteria, provide us with many necessary vitamins for example. The bacteria make the vitamins, and we gladly absorb them. We pretty much depend upon E. coli in our intestines for our source of Vitamin K and B-complex vitamins.
The fetus of any animal is completely sterile. Immediately after birth however, the newborn acquires all kinds of different bacteria which live symbiotically (we help them to live, and they help us to live) with the newborn and throughout the individual's life. From the day we are born, we are _never_ without bacteria. However, the helpful bacteria like these are located "only" in regions of our body directly exposed to the environment, e.g., our intestines, upper and lower respiratory tract, etc... and never within our bloodstream or the tissues inside our body. Sounds weird, but, it's true - billions of these little critters chugging away, making things we need, helping to digest our food, etc., -- very important to us and most of them are exceedingly kind to us - except when they become teenagers and enter the throes of puberty (just kidding). Indeed, animals who are born and raised "germ free", are really wimpy.... they have thin intestinal walls, puny heart output, and require lots of vitamin supplements just to stay alive.
2006-07-10 05:06:59 · answer #1 · answered by ATP-Man 7 · 1⤊ 0⤋
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2016-03-26 23:27:42 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Eating undercooked beef, especially hamburger, can increase your risk of infection with Escherichia coli (E. coli) bacteria. E. coli are a broad group of bacteria that live in the intestinal tract of healthy people and animals. Most of the bacteria are harmless and play an essential role in absorbing certain vitamins. But a few strains of E. coli are responsible for serious food-borne infections.
2006-07-09 23:37:35 · answer #3 · answered by Phillip R 4 · 0⤊ 0⤋
It's part of a lot of scientists' daily life - it is the single most studied micro-organism on the planet and is used for the vast majority of gene cloning experiments conducted in laboratories around the world.
2006-07-10 10:41:34 · answer #4 · answered by the last ninja 6 · 0⤊ 0⤋
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2006-07-09 23:08:08 · answer #5 · answered by sunkissed299 4 · 0⤊ 0⤋