Which cell is normally produced as a direct result of meiosis

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

As a small change in a person's dna can cause a genetic disorder

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.