Abiologist is in the process of classifying a newly discovered fungus. the fungus is a decomposer and has saclike structures. to which group does the organism most likely belong?

The fungus belongs to the group Ascomycota of Fungi or the sac fungi.

Fungi are the eukaryotic, saprophytic organisms with their body made up of thin, theard-like structures called the hyphae. Many such interconnected hyphae are referred to as mycelium.

Group of fungi producing sac like structures are called the Ascomycota or sac fungi. During the process of sexual reproduction, they produce a large number of sacs called the asci. Each ascus contains around 8 ascospores produced during the meiosis. The asci is contained in a structure called the acsocarp with varying shapes. They exhibit heterotrophic mode of nutrition and obtain nutrition by secreting enzymes and decomposing dead and decaying materials. Thus, they are called the saprophytes.  Yeast and Candida are common examples of the group Ascomycota.