Science is a dynamic subject and it changes all the time. In the science field, research is always on going and when new evidence are discovered about a particular topic, the new evidence are usually used to update the scientific information that is already on ground. All the areas of science listed about have enjoyed scientific updates in the recent.
It cannot be a bacteria because bacteria is made up of one cells, as it is a unicellular organism. Secondly, chlorophyll is the chemical that is in plants that makes the leaves on said plant green. So that makes the correct answer plants and proves why C.Bacteria is wrong.
They are similar because they are both located near the same parallel on the opposite hemisphere. Imagine it like like a mirror. From the North pole towards the equator the climate changes, and then it is mirrored in the southern hemisphere going from the equator towards Antarctica. They are located in the same parts of their respective hemispheres.