Answer:
true
Explanation:
before you had to be 16 but now you have to be 18 or older
They became slaves,and they did not have rights long ago
I think it's because of the increase in economy..... but research it just incase!
No they don't, because when the archaeologist got there they messed up everything.
Answer: d. A&C
Explanation:
James Olds and Peter Milner´s discovery of reinforcement centers of the brain happened by accident in 1954.
They implanted an electrode inside a rat's brain, with the intention of stimulating the reticular system, when the rat, placed inside a box, approached a certain place. They expected the rat to eventually avoid that place.
However, the electrode curved off its expected course and landed near the hypothalamus, and the rat´s behavior indicated the brain stimulation was pleasurable.