Bacillus thuringiensis (Bt) is a spore forming (flash animation) bacterium that produces crystals protein (cry proteins), which are toxic to many species of insects.t is largely used in agriculture, especially organic farming. Bt is also used in urban aerial spraying programs, and in transgenic crops. To learn more about each of these topics, click on the corresponding link on the left.
Advantages and Limitations of Ratio Analysis. Financial ratio analysis is a useful tool for users of financial statement. It has following advantages: 1  It simplifies the financial statements.  It helps in comparing companies of different size with each other.
acid-test ratio. Definition. The ratio of current assets less inventories to total current liabilities. This ratio is the most stringent measure of how well the company is covering its short-term obligations, since the ratio only considers that part of current assets which can be turned into cash immediately (thus the exclusion of inventories).