This document contains 3 worksheets each containing 11 multiple choice questions on ecosystems. The questions deal with things like producers, consumers, biomes, food chains, decomposers, etc.
This is a great resource to review for tests, use in small-groups or partner work, assessment, or homework.
Other items of interest:
Ecosystem Vocabulary Bingo
Ecosystems TurningPoint Clicker Presentation
Human Body System Bingo