chemosynthetics
bioremediation
bacteria......harmless under a microscope but if i let it loose....MWHAHAHAHHA
The question is toxic to what. Not all chemicals which are toxic to humans are toxic to bacteria, and some chemicals which are toxic to bacteria are harmless to humans (which is why we can have antibiotics). There are chemicals (like Hydrogen Sulfide) which are very toxic to mammals that SOME bacteria eat as food. But there are other chemicals like chlorine which are toxic to both humans and bacteria. So the question does not have a simple answer.
bacteria is not harmless if there is alot of bacteria then you can get really sick.
Pollutants in the sea are not made harmless by dilution because large bodies of water have the capacity to dilute and disperse wastes :) Hope that helps you out!
There can be, yes. But they are most liekly harmless and natural.
the microorganisms can be harmful and harmless. the harmless microorganism serve a lot of use to both plants and animals. the rizobium bacteria present in the root nodules of legumes fixes atmospheric nitrogen. the lactobacillus is used in the curdling of milk. yeast is commercially used for fermentation. some of the microorganism decay the dead material. some like spirulina are used as food supplements by astronomers.
Yogurt and buttermilk are fermented by a harmless bacteria added after pasteurization to prolong their shelf lives.
The harmless living bacteria took in pneumonia-causing DNA(genes) from the heat-killed, pneumonia-causing bacteria, as a result of which the harmless bacteria changed into bacteria that cause pneumonia.
"Although you might not like to think about it, millions of microorganisms, including bacteria, are living on the surface of your skin. Most of the time they are harmless, but, if you get a cut or even an insect bite everyday bacteria may take the opportunity to slip under the skin and cause an infection." source: http://www.healthology.com/skin-problems/skin-problems-information/article1216.htm
Yes
Aids.