Articles > Quizzes & Surveys > Biotic factor definition – quiz Biotic factor definition – quiz Quiz Choose the best answer. 1. What is a biotic factor? Any of the living components of an ecosystem Any of the non-living components of an ecosystem All components of an ecosystem 2. Which of the following is a biotic factor? Air Soil Pathogen 3. The biotic component of an ecosystem that acts as a producer Phototroph Heterotroph Detritivore 4. Which of the following groups is an example of a consumer? Fungi Photosynthetic algae Cyanobacteria 5. The biotic factor that decomposes decaying plants and animals Phototroph Heterotroph Decomposer Send Your Results (Optional) Your Name To Email Time is Up!