What are the uses of topographic maps?

People use topo maps for many things. Architects use them to plan where to build while miners use them to find good places to dig. Even cell phone companies use these maps to find the best places for signal towers.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands