Certain types of bacteria can be harmful to the environment. Others help with natural processes like decomposing and stuff like that. So, it depends what kind of bacteria you are talking about.
Harmful bacteria will harm you. Helpful bacteria will help you.
Bacteria are important in the formation of certain foods. They are also used in mining and bioremediation (using bacteria to clean up the environment). In addition, bacteria that colonize different places in your body out compete other bacteria that may be harmful.
changes both harmful and useful
yes they kill more harmless insects than harmful ones.
They can cause diseases. Another way is that they can invade organisms.
Hydrochloric acid is the acid present in the stomach that helps to kill harmful bacteria by creating an acidic environment that is inhospitable to most bacteria.
Pretty much everywhere. Its just no harm to you because its minor bacteria. If you are in a very dirty environment, the bacteria that has formed can be harmful or deadly.
Yes. Most bacteria is not harmful to us such as bacteria in a yogurt, but some bacteria is harmful.
"Bacteria-rich" refers to an environment, substance, or organism that contains a high concentration or diversity of bacteria. These bacteria can be beneficial, harmful, or neutral depending on the specific context.
There isn't really a "purpose" for harmful bacteria, or anything else, in the scientific sense (perhaps what you really meant to ask was "Why did God/the gods create harmful bacteria?" but then you should have put it in the Religion category). Some bacteria are "harmful" because that helps them spread and reproduce (bacteria that happened to cause coughing or sneezing spread more effectively, and so passed that trait on to their descendants). Some bacteria are harmful as a defense against other kinds of bacteria; a species that can live in a highly toxic environment has at least some incentive to MAKE the environment highly toxic so that they don't have to compete with other species. And some bacteria are harmful more or less "by accident"; they don't derive any real benefit from being harmful, but there's no advantage to them in NOT being harmful either, so there's no evolutionary pressure on them to become either more or less harmful.
Only 1% of bacteria is harmful to humans
There are many, many types of bacteria. They can be both harmful and helpful to us. Also, even if there were to be helpful in a certain part of the body they may also be a pathogen in another.
Bacteria can be both harmful and useful. Harmful bacteria can cause infections and diseases, while useful bacteria play important roles in processes such as food fermentation, digestion, and nutrient recycling in the environment. The vast majority of bacteria are harmless or even beneficial to humans and the environment.
If you keep food in a cool environment it lasts longer as the development of harmful bacteria is slowed down.
Bacteria can be harmful to the environment when they cause diseases in plants and animals, leading to ecosystem disruption. Some bacteria produce toxins that can harm the environment and living organisms. Additionally, excessive growth of certain bacteria can deplete oxygen levels in water bodies, leading to environmental imbalances.
Harmful bacteria will harm you. Helpful bacteria will help you.
Bacteria can act as decomposers, breaking down organic matter and recycling nutrients in the environment. They can also be beneficial by aiding in digestion, producing vitamins, and helping protect against harmful pathogens. However, some bacteria can also be harmful, causing infections and diseases in humans and other organisms.