How did the neolithic era differ from previous time periods?
a. people began to establish democratic forms of governments.
b. people no longer depended only on hunting and gathering for food.
c. people no longer used stone or wooden tools.
d. people no longer lived in organized societies.

i believe the answer is a

the hyksos invasion. the hyksos were able to attack egypt successfully because of their skills in using bronze weapons, composite bows and the use of the horse and chariot during the invasion. although the egyptians depict a barbarian-type overthrow, the truth is the seizure was likely a relatively peaceful one.