What kind of connective tissue forms the superficial layer of all parts of a bone?

Describe how an electric generator works

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 substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water