Slime molds: phenotypically similar to both fungi and protozoa Cellular slime molds: vegetative forms composed of single amebalike cells. Acellular slime molds: vegetative forms composed of indefinite size and shape Acellular slime molds growing on an agar surface Acellular slime molds growing on a decaying logSlime molds: phenotypically similar to both fungi and protozoa Acellular slime molds growing on a decaying log Acellular slime molds growing on an agar surface Cellular slime molds: vegetative forms composed of single amebalike cells. Acellular slime molds: vegetative forms composed of indefinite size and shape