Question

1) All organisms including bacteria and fungi feed on dead plants and animals. Then why are only bacteria and fungi known as decomposers?2) Given a bar magnet, how will you find the west direction?PLS ANSWER FAST

Answer 1

BACTERIA AND FUNGI PLAY AN IMPORTANT ROLE IN THE DECOMPOSITION . THEY ARE RESPONSIBLE FOR BREAKING DOWN THE ORGANISMS WHICH ARE DECOMPOSING.AS, THEIR DECOMPOSE WASTE LEAVE NO RESIDUE THEY ARE CALLED DECOMPOSERS.

Answer 2

1. Organic matter is recycled in an ecosystem by decomposers. Decomposers are organisms such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals. As the decomposers feed from the dead animals, they break down the organic compounds into simple nutrients. These simple nutrients are returned to the soil and can be used again by the plants. The energy transformation chain begins again.Decomposers

Decomposers are nature's recyclers as they break down the organic matter found in the dead bodies of plants and animals. The term 'organic matter' refers to the matter that comes from living organisms. Decomposers are chiefly the micro-organisms such as bacteria and fungi in the form or yeasts and moulds that break down bodies of dead organisms and release compounds that can be used by producers. Some of these compounds include nitrogen, phosphorus and magnesium. There are more than 100 000 different types of decomposer organisms.

Bacteria and fungi produce chemicals, called enzymes that digest dead material. The digested material then provides a food source for other organisms in the soil. This makes the role of a decomposer extremely important in an ecosystem. Without them, organic matter would pile up on the ground and plants would not receive the required nutrients necessary for their survival. The decomposing process greatly increases the nutrient-load of an ecosystem which allows for greater biodiversity.