A decomposer is an organism that breaks down dead or decaying organisms. Decomposers carry out decomposition, a process only certain organisms can perform.

Decomposers include:

• Fungi
• Bacteria
• Invertebrates (such as worms and insects)

Decomposition is important because it recycles dead organisms and waste as nutrients that other living organisms can use, helping to sustain the ecosystem.

For more information, you can check out these resources:

• Science Learning Hub - Decomposers
• Britannica - Decomposer