There are no objects that are both biotic and abiotic.

Here's why:

* Biotic refers to living organisms or things derived from living organisms. Examples include plants, animals, fungi, bacteria, and their remains (like wood or fossils).

* Abiotic refers to non-living components of the environment. Examples include rocks, water, air, sunlight, and temperature.

While there might be some overlap in the way living organisms interact with non-living components, they remain distinct categories.

For example, a tree (biotic) uses sunlight (abiotic) for photosynthesis, but the sunlight itself is not alive.

Let me know if you have any other questions!