In the chapter on communication in social systems we suggested that highly cohesive groups sometimes make faulty decisions when deciding a course of action because they become locked into a particular perspective, or plan, and disregard other ideas in order to keep group conformity intact. This phenomenon is known as

This phenomenon is known as Groupthink.

Explanation:

Groupthink is a phenomenon that happens when a group behaves and acts in an extremely cohesive and harmonious way, reaching the point where a member, or more, of that group cannot express an opinion if it is contrary to the objectives and thoughts of the group as a whole, even if the group's goals and thoughts are incorrect. An example of this can be seen in the question above, where a highly cohesive group gets to make the wrong decisions, because they are stuck in a perspective and do not have the audacity to change their thoughts and ideas.

answer; biological;