If the world had a less number of decomposers it could mess up the ecosystem because the soil wouldn't be as great which would make less plants grow which would make less homes for animals that live in trees, etc and would also effect the food for animals who dont eat meat.
All proteins are composed of amino acids. Each amino acid in a protein is linked by chemical bonds. Enzymes are composed of chains of amino acids. Enzymes are a type proteins that turn a cell into a highly developed miniature factory carrying out chemical reactions very fast.
How can microorganisms disrupt the health of organisms? Some microorganisms causes diseases in a host. These microorganisms are called pathogens. Pathogens cause a disease by killing the host cells, releasing toxins, or interfering with the processes within the host's body.