It's definitely the microorganisms, or if there are scavengers in your place.
Producers
Many dead ocean organisms sink to the ocean floor and become part of the sediment. There, they can be broken down by bacteria and other decomposers, or may become fossilized over time. Some dead organisms may also be consumed by scavengers and other organisms in the food chain.
Dead plants and animals are consumed by decomposers such as bacteria and fungi.
no
for meh the plants
dead organisms
Dead plants can decompose and be broken down by fungi, bacteria, and other organisms. These organisms help break down the dead plant material into simpler nutrients that can then be reused by other living plants.
the dead organic matter is overtaken by new plants.
The dead plants at the bottom of a pond are commonly referred to as "detritus." This organic matter, along with decomposed plant and animal material, contributes to the nutrient cycling in the aquatic ecosystem. Detritus serves as a food source for various organisms, including bacteria and detritivores, which help break it down further.
What do carnivorous plants do to their organisms? Carnivorous plants use the dead organism that they eat to use for energy, to grow, and to stabalize their other "heads".
There are many organisms that feed on carcasses of plants and animals. Jackals and Vultures and among them. There are also organisms called decomposers which break down the dead carcasses for nutrients.
decomposes break down the remains of dead plants and animals.