difference between biotic and living? how can we differentiate between _biotic_ and _living_ things,is there any difference? and same for abiotic and non-living? I think it is that biotic is like biomass and living should carry out life processes.

> **biotic** : relating to or resulting from living things, especially in their ecological relations (Oxford)

While there may be a field-specific connotation that I'm not aware of, I've never heard "biotic" as a category of "things" before. I am most familiar with it's use in the context of ecology, e.g. a parasite might be a biotic factor in the survival of a population of animals in a particular ecosystem.

To get to the heart of your question, I don't think there is a difference, but rather a relation: biotic factors _refer to_ currently or formerly living things (and abiotic refers to things that are or were not alive).