The split between the Archaea and the Bacteria as seen in b and c is agreed up 2. The acquisition of organelles as a major group is agreed upon. Recognition of biodiversity in single celled organisms is under intensive study and the number of groups at the level if the Kingdom is still not agreed upon. Stay tuned for the next edition of your text book. Take note of fig 26.3 1.
Plants form a monophyletic group with green algae.
Perhaps the first great extinction as anarobes died in the presence of oxygen. Membrane bound orgenelle in the cytosol. Origin of nucleus fig 28.2, pg 523- pinching off of invaginated functional membranes gave rise to the endomembrane system and the nucleus. Organelles are Bacterial endosymbionts in Archaeal hosts. A. Bacteria as the symbiont 1.