Answer:
Ghrelin (I hope this helps!!)
Explanation:
 
        
                    
             
        
        
        
False there are only four main types
        
                    
             
        
        
        
Answer: There are 17 autonomous communities and two autonomous cities that are collectively known as "autonomies".
 
        
                    
             
        
        
        
Answer: d) Discriminative Stimulus
Explanation:
 Discriminative stimulus is defined as term in classical conditioning in which the stimulus is utilized for obtaining a particular feedback from someone.It helps in getting the responses that are desired by an individual and increase those response accordingly.
According to the situation it also describes discriminative stimulus as Tommy prefers to ask about staying up past the bedtime from babysitter as he gets the desired response in the form of permission to stay up. His parent did not let him stay up late so the feedback was not favorable to Tommy's desire.
Other options are incorrect because stimulus class have same element consisting cluster of stimulus. S-delta is the stimulus in which non-enforced behavior is present. Reinforcer is stimulus that encourage for gaining particular response.
Thus, the correct option is option(d).
 
        
             
        
        
        
Answer:During the late 1700s to mid 1800s, a growing opposition to slavery was taking place in the United States.This growing opposition was visible in the ways people were beginning to speak out against slavery through abolitionist movements, along with some aspects of the Wilmot Proviso.People’s consciences were also stirred by the novel, Uncle Tom’s Cabin.
PLZ mark me as brainlyest