Here's a breakdown:
* Chemical Energy: The biomass contains stored chemical energy in the form of complex organic molecules (carbohydrates, proteins, fats).
* Decomposition: Microorganisms like bacteria and fungi break down these complex molecules.
* Respiration: These microorganisms use the energy from the broken-down molecules to carry out their own life processes, including respiration.
* Heat Energy: During respiration, some of the energy from the organic molecules is released as heat, which is why compost piles can get hot.
In summary: The chemical energy stored in the biomass is transformed into heat energy by the decomposition process carried out by microorganisms.
