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.
Quick introduction to arrays and array formulas. An array formula is a formula that can perform multiple calculations on one or more of the items in an array . You can think of an array as a row of values, a column of values, or a combination of rows and columns of values.