Edexcel IGCSE 2017 Biology: Cells and Enzymes topic Lesson 1: Characteristics of Living things. Contains 15 question multiple choice quiz and covers MRSGRENC Use the attached “Random person selector” by editing the file to add your students names in. Then link the Random Person Selector button on the penultimate slide to that file. See instructions in the ppt. Comments and suggestions welcome. The rest of the topic will be uploaded soon.