By observable features.
Proctoctista's
a fungus
fungus is classified by size and shape and fungus is different by color and shape
a type of fungus
Mold should be classified in the fungus kingdom.
Mold is not a plant; it is a type of fungus. Fungi, including mold, are not classified as vascular or nonvascular plants because they belong to a separate kingdom in the classification of living organisms known as Fungi.
plants are classified by people putting plants in three different groups
fungus
Plants are classified in the domain Eukarya.
Actually plants, animals, protist, fungus, Eubacteria, Archaebacteria are the kingdoms of Earth biology.
Plants such as kelp, seaweed, coral, fungus, ect.
No plants make yeast. Yeast is a fungus.