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 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..