<span>Substitution Effect, The idea that as prices rise (or incomes decrease) consumers will replace more expensive items with less costly alternatives</span>
Dr. López has probably found
"mirror neurons".
A mirror neuron is a neuron that flames both when a creature acts and when the creature watches a similar activity performed by another. Hence, the neuron "mirrors" the conduct of alternate, as if the onlooker were itself acting. Such neurons have been straight forwardly seen in primate species.
Answer:
...................It is true
The back of the Declaration of Independence is not empty and it features the following words, in two lines as I wrote them below:
"Original Declaration of Independence
dated 4th July 1776"