Suppose you encountered a location with the following dominant species: Wintergreen, Yellow Birch, and a species of tall tree that you were unable to identify. What successionaryy stage is the location? How do you know?

The succsessionary stage is low because the tree is low in terms of population. The tree is not even identified, that is how low it's population is. Hope this helps!

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.