Which is true about scientific Knowledge?? A. It is never reliable.
B. It is open to change.
C. It is rarely proven wrong.
D. It always becomes a fact.

The instructions for making proteins come originally from

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.

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.