Contained in the document is a link to 2 self-marking quizzes for Google Classroom. I use these with YouTube videos for flipped learning homework tasks, but they could be easily used as a starter in a lesson.
Once shared with pupils they not only self-mark, but with the addition of Flubaroo, the associated spreadsheet records the responses in one place.
Please find the links for the KS3 biology Variation quizzes on the second page of the document.
The link opens the Google folder containing the quizzes. Select the quizzes and copy them to your Google Drive. To edit and enable the self-marking spreadsheet you need to make your own copy of the quizzes, which then become editable.