What did astronomers discover about other galaxies in the early 20th century

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 ?

What is the process by which biological parents pass traits such as hair type or eye color to their children

20 points! easy do shrimp hibernate