Which of the following countries did the Roman empire NOT trade with?
a.
Gaul
c.
China
b.
Western Germany
d.
Russia

the branch of biology that deals with the normal functions of living organisms and their parts.

the way in which a living organism or bodily part functions.

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .