4. The mycelium of Molds can be characterized by which of the following statements: 1-it consists of hyphae 2-it can be divided into aerial and vegetative parts 3-its aerial part is responsible for fluff appearance of a colony 4-it may possess septae

The correct answer is 1 - it consists of hyphae.<br /><br />Mycelium is the vegetative part of a fungus, consisting of a network of fine white filaments called hyphae. These hyphae collectively form the mycelium, which is responsible for nutrient absorption and growth of the fungus. The other statements are not accurate descriptions of mycelium.