That statement is true.
In initial phase of the relationship, it is far easier to hide a certain character from your partner since both individuals haven't been exposed to each other's habbit.
Once you confess a certain weakness, you no longer be able to choose which character that you wanted other to perceive because the illusion that you put as a front for your previous character is already shattered.
The correct answer is a conditioned stimulus.
A conditioned stimulus (CS) refers to a previously neutral stimulus, that when repeatedly paired with an unconditioned stimulus (UCS) elicits the same response as the UCS, even in the absence of the UCS. In this example, the CS is Dr.Jones closing the classroom door, because this stimulus by itself elicits a response of anxiety in students.
Answer:
The prefix "di-" means two, and these organisms are usually found in pairs under the microscope hence the reason for the original naming.
