Research has identified a species from the west coast of the United States which may have been the ancestor of 28 distinct species on the Hawaiian Islands. What is this species?

How can you keep track of variables in a science experiment?

Someone me with this: a mineral' is determined by its actomic structure.

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?