(or, in some cases, "cyanobacterium" / "cyanobacteria"). _______________________________________________________ <u>Note</u>: This applies to marine lichens—as well as lichens on land. _______________________________________________________
You take any of the "signs of change in populations of organisms and their environments". For imagine, Australopithecus (early man) turning to Homo sapiens. In that way they could tell that you took this journey.
