Complex carbohydrates are a source of .

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles