Which one exhibits the character of a protozoan during one phase of its life cycle and the character of fungi in another phase of its cycle?

The slime molds (or molds) make up two unique and interesting phyla of kingdom Protista. The slime molds resemble both protozoa and the true fungi. They behave like protozoa with their amoeboid plasmodial stage and like true fungi in their ability to form abundant spores. Thus, the correct answer is Slime molds.