Molecules are held together by electrons shared between bonded atoms. For example, consider the formation of an H2 molecule from two separate hydrogen atoms: 2 approachinghydrogen atoms(2 H) a hydrogen molecule(H2) As the two atoms approach, each nucleus begins to attract the other atom's electrons.
Definition of Hyphomycetes. in some classifications. : a subclass of fungi coextensive with the order Moniliales or including both the Moniliales and the Mycelia Sterilia.
1. A branching tubular cell characteristic of the filamentous fungi (molds). In most species the hyphae are divided by cross-walls (septa) into multicellular hyphae; intercommunicating hyphae constitute a mycelium, the visible colony on natural substrates or artificial laboratory media. The terms hypha and mycelium often are used interchangeably. 2.