This is a PowerPoint quiz designed as a formative assessment covering the many relationships between plants and animals in an ecosystem. It is a great tool to help your students differentiate between the many roles in a food web or chain. Terms covered include: consumers, producers, scavengers, decomposers, predator, and prey. The assessment is designed to use with A/B cards or with whiteboards. Each questions has 2 options and answers to questions are provided on the next slide. Graphics are included to enhance students' attention.