Dinoflagellates are unicellular, motile, photosynthetic protists. They have a well defined nucleus and possess two different flagella one transverse and the other is longitudinal. They belong to kingdom-Protista.

Zooflagellates like Trichonympha and Lophomonas live as a sybiont in the intestine of termites and wood roaches , respectively , They secrete cellulose digesting enzymes which convert cellulose into glucose. The digested food (glucose) is shared by both zooflagellates and the hosts.

Ascospore formation is the characteristic of class-Ascomycetes. Ascospores are a type of non-motile meiospores which are produced inside special sacs called asci (sing. ascus). An ascus often contains 8 ascospores because meiosis is accompanied by one mitotic division

Neurospora (pink bread mould) is often called Drosophila of plant kingdom. It is haploid in nature which helps in immediate expression of every mutation. Beadle and Tatum used it as an experimental tool to find out that genes express their effect through synthesis of specific enzymes.

Some fungi have evolved essential relationships with the roots of many living plants.
These fungi grow around and into the roots. Both partners benefit so that neither would thrive without the other. This partnership is called mycorrhizal symbiosis.

Bracket or shelf fungi are lignocolous fungi which produce bracket or shelf-shaped, hard, leathery basidiocarps that are found to come out from the tree trunk on loss of wood, e.g., Fomes tomentarius, etc.