a yeast cell is a kind of single cell organism
single_cell_organism is microorganism. single_celled_haploid_organism is single_cell_organism. single_celled_zygote is single_cell_diploid_organism. single_cell_diploid_organism is diploid_organism. single_cell_organism is living_organism. single_cell_organism is cell. yeast is single_celled_plant. yeast is single_cell_organism. single_cell_diploid_organism is diploid_cell. single_cell_diploid_organism is single_cell_organism.