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 July 28, 2017 at 2:57 pm #3628 Bernard NebelKeymaster Good observation. Consider that the cover photo shows that kids’ existing notions may lead to mistakes. However, take this as an opportunity to discuss and clarify the concept further.