Identify the eon during which the oldest microfossils occurred.

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 ?

Aprocedure done under controlled conditions to test a hypothesis is an inquiry.

According to these anatomical structures which two animals are probably most closely related