Before revision: Polychotomous key refers to the number of alternatives which a decision point may have in a non-temporal hierarchy of independent variables.
After revision: <gallery>Insert non-formatted text here</gallery><gallery><gallery>File:Example.jpg|Caption1File:Example.jpg|Caption2</gallery><gallery><gallery>File:Example.jpg|Caption1File:Example.jpg|Caption2</gallery><gallery><gallery>File:Example.jpg|Caption1File:Example.jpg|Caption2</gallery><gallery><gallery>File:Example.jpg|Caption1File:Example.jpg|Caption2</gallery></gallery></gallery></gallery></gallery>Polychotomous key refers to the number of alternatives which a decision point may have in a non-temporal hierarchy of independent variables.