Bacillus thuriginensis is a good

Bt toxin protein crystals present in bacterium Bacillus thuringiensis, do not kill the bacteria themselves because

Many proteins are secreted in their inactive form. This is also true of many toxic proteins produced by microorganisms. Explain how the mechanism is useful for the organism producing the toxin ?

Which bacteria was the first to be used as biopesticide on the commercial scale in the world?

Which of the following $Bt$ crops is being grown in India by the farmers?

The scientific process by which crop plants are enriched with certain desirable nutrients is called