What data did the tests on the purfied substance produce? How did this data further support the hypothesis that DNA is the transforming factor?

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 ?

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity

The cretaceous period spanned the time interval between and 65 million years ago. 250 million 144 million 75 million 200 million