Explain why early eukaryotes were able to grow more quickly than cells that did not possess mitochondria.
Nuclei are enclosed by a nuclear envelope containing nuclear pores in cells. This is the only property that defines an organism as a eukaryote, and it is both necessary and sufficient. Cells with nuclei are found in all existing eukaryotes.
Mitochondria is a type of organelle present in surviving eukaryotes contain very few mitochondrial remains in their cells, while others in their lineages have typical mitochondria. Mitochondria are the powerhouse of the cells. Earlier eukaryotes have some amount of genetic material in mitochondria as well apart from in the nucleus. The genetic material present in the mitochondria divide the cell into two passing the heredity information from mother to offspring. Therefore the earlier eukaryotes that contained mitochondria grew quickly compared to their counterparts.