Endospores are hardy, defensive structures that enable some bacteria to survive harmful environmental conditions, such as starvation, high temperatures, desiccation (drying out), chemical disinfectants and extremes in pH.
Recursive formula is a formula that is used to determine the next term of a sequence using one or more of the preceding terms.
1 An example of something recursive is an essay that keeps repeating the same ideas over and over again. 2  reapplying the same formula or algorithm to a number or result in order to generate the next number or result in a series.  returning again and again to a point or points already made: a recursive style of writing.