Which of the following items is the best example of a system?
a. a tooth
b. claws
c. a hampster
d. fur

Place the steps tor the formation of the enzyme pepsinogen in correct order

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.

The reactions that occur in the ribosome, where amino acids are combined to form proteins are anabolic or catabolic?