Some are. Or, better answer: just about all bacteria are toxic if they're in the wrong place. Some, like Escherichia coli, are good for us when they're living in our gut, but bad for us everywhere else. Other kinds are safe on the skin, but not in the blood. Others don't belong on the human body at all, but are usefully employed fixing nitrogen at the roots of green plants, or decomposing vegetable matter for soil.
The product of the conversion of ammonia into a less toxic substance is usually nitrate (NO3-) through a process called nitrification. In the presence of specific bacteria, ammonia is oxidized into nitrite (NO2-) first and then further oxidized into nitrate, which is less toxic to aquatic organisms and plants.
Bacteria can benefit contaminated soil by biodegrading pollutants, breaking them down into less harmful substances. They can also bind and immobilize toxic metals, reducing their availability for uptake by plants. Additionally, some bacteria can enhance soil fertility by fixing nitrogen and improving nutrient availability for plant growth.
Logging can lead to sediment pollution as soil erosion occurs without tree roots holding the soil together. This sediment can wash into waterways, affecting water quality and aquatic habitats.
Obligate anaerobes, such as certain bacteria, are organisms that cannot survive in the presence of atmospheric oxygen because it is toxic to them. Exposure to oxygen can damage their cellular structures and metabolic processes, leading to their death.
Hydrogen Peroxide (H2O2) is a strong oxidizer. As such it's pretty lethal to most bacteria if it comes in contact with them. Note that it's also pretty deadly to most cells it comes in contact with and, depending on the concentration, can be dangerous to be around. The stuff you get in a pharmacy is about 3% concentration, and is not harmful.
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.
YES!
Because it is toxic to bacteria.
A bacteriotoxin is a toxin produced by a bacterium, or a material which is toxic to bacteria.
Yes, Toxic Shock syndrome (TSS) is a bacterial infection where certain bacteria release toxins into the body. The bacteria responsible are staphylococcus aureus and streptococcus pyogenes.
It can be - compost is made from the decomposition of organic material by bacteria and fungus (mostly bacteria), so your dog can get a bacterial infection from eating it. Also, many of the break-down products of composting can be toxic.
anerobic
Some bacteria can use arsenic for the life.
The serum neutralizes the toxic poisons that the bacteria released into the body.
yes
Gold
Pork is not toxic to consume when cooked properly. It is important to cook pork to the recommended internal temperature to kill any harmful bacteria.