Living Organisms:

* Animals: A squirrel, a bird, a fish, a whale, a ladybug.

* Plants: A tree, a flower, a fern, a grass blade, a moss.

* Fungi: Mushrooms, mold, yeast.

* Bacteria: The bacteria that live in your gut, the bacteria that decompose dead leaves.

* Viruses: While not technically living organisms, viruses are biotic because they need a host cell to reproduce.

Things that come from living organisms:

* Animal waste: Dog poop, bird droppings, cow manure.

* Dead organisms: A fallen log, a decomposing leaf, a dead fish.

* Products of living organisms: Honey from bees, silk from silkworms, wool from sheep.

Important Note:

The key thing to remember about biotic factors is that they are living or were once living. This is what distinguishes them from abiotic factors, which are non-living.