A cisgender person is one whose gender identifies with the sex assigned to them at birth. In other words, a person's gender identity corresponds to their biological sex. For example, a person who identifies as a man was biologically assigned as male at birth is referred to as a cisgender woman.
It is important to note that cisgender is associated with gender identity, not sexuality. For example, two women can be cisgender women but one is lesbian while the other is straight.
A response is the way someone acts when in the presence of a certain stimuli. This is a conditioned response, because the child has been conditioned through past experience to expect food everytime the door opens.
