Reply To: Living or Biological Clarification Welcome to BFSU: › Forums › Volume One › Learning Progression “B”: Life Science › Lesson B-2. Distinguishing Living or Biological, Natural Earth, and Human-Made Things › Living or Biological Clarification › Reply To: Living or Biological Clarification January 6, 2020 at 11:11 pm #8200 cinvela1Participant How can I best explain that paper is not biological? My son, almost 5, claims it comes from trees. I am not sure how to counter this notion.
