VWhat development was a result of early humans living in clans?trade routesmarriage customsorganized religionsgovernment systems

It is widely assumed that people need to engage in intellectual activities such as solving crossword puzzles or mathematics problems in order to maintain mental sharpness as they age. in fact, however, simply talking to other people—that is, participating in social interaction, which engages many mental and perceptual skills—suffices. evidence to this effect comes from a study showing that the more social contact people report, the better their mental skills. which of the following, if true, most seriously weakens the force of the evidence cited? (a) as people grow older, they are often advised to keep exercising their physical and mental capacities in order to maintain or improve them. (b) many medical conditions and treatments that adversely affect a person's mental sharpness also tend to increase that person's social isolation. (c) many people are proficient both in social interactions and in solving mathematical problems. (d) the study did not itself collect data but analyzed data bearing on the issue from prior studies. (e) the tasks evaluating mental sharpness for which data were compiled by the study were more akin to mathematics problems than to conversation.

Recall this unit’s essential question: what are the benefits and risks of interdependence? provide examples as evidence from your studies to explain two benefits and two risks of interdependence.

Identify a true statement about media multiplexity. the choice of medium is primarily important in determining the strength of relationships. weak ties are uncomplicated and do not need many channels to sustain them. tie strength plays an insignificant role in determining the number of media employed by pairs. strong ties require less media than weak ties to orchestrate their varied and interdependent connection.