Answer:
Nasaan po ang iyong kaugalian na tinutukoy?
In a prominent model of self-administration developed by George Koob, rats are allowed to self-administer cocaine for either 1 hour each day (short access) or 6 hours each day (long access).
B. They were slave states that stayed in the Union.
The border states were slave states that stayed in the Union and were a great advantage to the Union by giving them an advantage in terms of troops and money.
