When looking at rock layers, fossils are typically at the bottom and at the top.

Facilitates growth and change in neurons and the migration of neurons to different sites in the brain

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.

Environmental impacts on evolution : mastery test