Organic matter in soil is also called

humus.

Explanation:

Humus is the organic matter decomposed from the earthworms digestion process, forming a natural compost, adding to the soil the remains of dead animals and plants and also their by-products.

Humus is considered the most complete fertilizer, having the following physicochemical characteristics: it has no smell (odorless), an aseptic substance rich in micronutrients (iron, boron, copper, zinc, molybdenum, chlorine) and macronutrients (potassium, nitrogen). phosphorus), besides having a soft texture due to the particle size of the soil (silt and sand).

it has one origin of replication, but it proceeds in two directions - d)