Title 1- Lesson Classification Year 9-Dr Manar Sholkamy.pdf ✅

1 Characteristics and classification of living organisms / Core Dichotomous Keys • Keys are used to identify organisms based on questions on their features • Dichotomous means ‘branching into two’ and it leads the user through to the name of the organism by giving two descriptions at a time and asking them to choose • Each choice leads the user onto another two descriptions • In order to successfully navigate a key, you need to pick a single organism to start with and follow the statements from the beginning until you find the name • You then pick another organism and start at the beginning of the key again, repeating until all organisms are named 4 of 12 Dr Manar Sholkamy 01001414464 Dr Manar Sholkamy 4