What is a bacterial smear? O a.
Bacteria spread on a slide
O b.
A sample of bacteria transferred from one medium to another
O c. Bacteria in a broth culture
O d.
Bacteria spread thinly on agar plate surface

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.