Part A. Plants, fungi and animals are all MULTICELLULAR organisms. Based on the phylogeny above this is due to: e. Shared ancestry Part B Plants, fungi, and animals all have EUKARYOTIC cells. This is due to:a. Homologyb. Convergent evolutionc. Aggregation of Archaea cells into coloniesd. Multiple endosymbiotic events e. Shared ancestry Part B Plants, fungi, and animals all have EUKARYOTIC cells. This is due to:a. Homologyb. Convergent evolutionc. Oxygen catastrophed. Allopatric speciatione. Both C and D Solution Part B Plants, fungi, and animals all have Multicellular organisms. This is due to convergent evolution. Convergent evolution is the process whereby organisms, which are not closely related, independently evolve similar traits that results from adaptation to similar environments. Hence, the correct option is b. Convergent evolution. Part B Plants, fungi, and animals all have EUKARYOTIC cells. This is due to homology. In this context, homology is the existence of shared ancestry between organisms. Hence, the correct option is a. homology..