|Tree of Life|
- Eukaryotes, which are all the things that have a macroscopic existence,
- Bacteria, which are everywhere but too small to see without a microscope, and
- Archaea, which are bacteria which live in places were no normal kind of life can live.
Meanwhile, back at the ranch, I don't understand the key on this drawing, to wit:
Major lineages with isolated representative - italicsI can understand having an isolated representative of a particular thing, and I can understand having a representative of a group or class of things, but having an isolated representative of a big group doesn't make any sense to me. Does this mean you have a single representative of a large group, but it is isolated so we don't know if it is really representative or not?
Major lineage lacking isolated representative - (red dot)
And if we are lacking an isolated representative, does that mean we have no representatives at all? Or we have a whole bunch, but they are so different we can't call them representative?
I know microbiology has their own lingo, but these two lines need translating.