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.
Fungi are eukaryotic, heterotrophic (lacking photosynthesis) organisms that, in most fungal groups, develop a microscopic, tubular thread called a hypha (pl. hyphae). A group of hyphae is known collectively as a mycelium (pl. mycelia), which makes up the vegetative (nonreproductive) body or thallus of the fungus.n overview of the phyla of plant pathogenic fungi is presented, summarizing hyphal characteristics, reproduction, dispersal, and survival mechanisms, symptoms, fungal diagnostics and control, and definition of commonly used terms.