How do bacteria associated with legumes provide nitrogen to the plant in a usable form A. they use it in a chemical reaction producing ammonia
B. they make it into air bubbles and release it
C. they dissolve it in water
D. they get it from sunlight

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 ?