DENDROLOGY

Detailed explanation-1: -The long filamentous branching in fungus and actinobacteria, known as hypha, comprise hyphae. Hyphae are essential factors in these species required for development, and together they are called mycelium. Hyphae grow by extending their internal structures and cell walls from the tips.

Detailed explanation-2: -A saprotroph is an organism that obtains its nutrients from non-living organic matter, usually dead and decaying plant or animal matter, by absorbing soluble organic compounds. Saprotrophic fungi play very important roles as recycle rs in ecosystem energy flow and biogeochemical cycles.

Detailed explanation-3: -These branches are hyphae, or filaments, of a mold called Penicillium. A mycelium may range in size from microscopic to very large. In fact, one of the largest living organisms on Earth is the mycelium of a single fungus.