Lichens will only grow on the stonework of buildings if the air is of good quality.
Escherichia coli (E. coli) is commonly used as an indicator organism to monitor water quality and assess fecal contamination due to its abundance in the intestines of warm-blooded animals. Its presence in water samples can indicate potential contamination and the possible presence of harmful pathogens.
Indicator organisms are typically used in water quality testing to reflect the presence of harmful pathogens. Examples of indicator organisms include E. coli and fecal coliform bacteria, as their presence in water indicates possible contamination with sewage or fecal matter, which may contain harmful pathogens. These organisms are easier and quicker to test for compared to all potential pathogens, and their presence can be used as a warning sign of possible contamination.
I can't see "the following" so don't know the choices but at a guess I would say E.coli
No, bromthymol blue is not a living organism. It is a chemical compound commonly used as a pH indicator in laboratories to detect changes in acidity or alkalinity in a solution.
Geobacillus stearothermophilus spores are commonly used for testing the efficiency of an autoclave. These spores are resistant to high temperatures and can be used as a biological indicator to ensure that the autoclave is properly sterilizing equipment.
The indicator that uses the acronym 'MA' is Moving Average. It is a widely used indicator used to trade trends.
Phenolphthalein is used as an indicator because the color of the solution is changed according to pH.
A word used for an organism preying on another organism is a Predator
"Coli bacteria" is a common shorthand for Escherichia coli, which is a type of bacteria found in the intestines of animals and humans. While some strains of E. coli are harmless, others can cause foodborne illness and infections. It is an important indicator organism used in water quality testing and microbiology research.
An organism.
An indicator in potable water is a substance that changes color in the presence of specific contaminants or parameters, such as pH level, chlorine concentration, or presence of bacteria. Indicators are used to quickly assess the quality of water and determine if it meets safety standards for consumption.
Universal indicator is a mixture of dyes that changes color in response to different pH levels. It is used to determine the approximate pH of a solution by observing the color change of the indicator when added to the solution.