Constituyen el esqueleto del vegetal

Energy derived from hot rocks and fluids beneath the earth’s surface is

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

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.