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.
Explanation A recursive function contains two important components: A recursion formula that tells how any term of a sequence relates to the preceding terms (e.g., xn = xn - 1 + 2, or Next = Now + 2); and An initial condition that gives the starting point (e.g., x1 = 1 or Start = 1).