What relationships exist between organisms from a phylogenetic tree

Which of these organisms have the greatest amount of cell specialized

Donde se encuentra el adn nuclear en un organismo eucariota?

Consider the classification levels of a human. eukarya ,animalia ,chordata ,mammalia ,primates, hominidae ,homo ,sapiens .which is the most specific taxonomic level in the classification system above? a sapiens b homo c hominidae d primates