The correct answer is chlorpromazine. Chlorpromazine is an antipsychotic drug which is primarily used to treat psychotic conditions such as schizophrenia but also other conditions such bipolar disorder and attention deficit hyperactivity disorder. Schizophrenia's symptoms can be divided into three broad categories; positive, negative and cognitive symptoms. The positive symptoms include the auditory hallucinations, delusions and the paranoia, while the negative symptoms include the apathy and lack of emotions. Chlorpromazine has been seen to reduce the patient's response to the positive symptoms.
when the amount of predators increase, the blue line rises, the red line lowers. when there is more predators there is going to be a less amount of prey.
Since it will help the individual live longer, there is a greater chance that it will reproduce than those with lesser favorable traits. Thus the next generation will resemble the parents with the favorable triat more.