2007-02-04 15:58:30 · 4 answers · asked by ray c 1 in Environment
1. fix nitrogen, putting it in the ground for plants to use
2. decompose organic matter to put it back into the cycle
3. live inside other organisms in a symbiotic manner, helping them make vitamins, etc.
4. make oxygen during photosynthesis (cyanobacteria)
5. used in industrial processes like tanning leather and making certain foods like cheese, yogurt, sauerkraut, ...
6. used in genetic engineering to produce chemicals for our use
7. used in biological treatment of some hazardous materials
2007-02-04 16:04:53 · answer #1 · answered by ecolink 7 · 1⤊ 0⤋
Without the cellulase producing bacteria found in the gut of herbivores(Cattle, sheep, goats,etc) there would be no herbivores. They would be unable to digest anything they ate. So another result ---there would be no carnivores. Probably no humans either.
2007-02-04 16:27:16 · answer #2 · answered by Anonymous · 0⤊ 0⤋
bacteria control the waste in our septic system so it doesn't just build up there under the ground...
2007-02-04 16:06:08 · answer #3 · answered by f0876and1_2 5 · 0⤊ 0⤋
They are our great great.........great granfathers so give them a little slack, you owe them.
2007-02-04 16:06:03 · answer #4 · answered by Anonymous · 0⤊ 0⤋