Baby elise has developed a sucking scheme. she knows that to get food she must suck on her mother's breast. now, her mother has begun to introduce solid foods with a spoon. elise immediately sucks on the spoon. this is an example of:

Suppose that a flower nursery benefits from having a butterfly farm located only a few miles away, because the presence of the insects greatly improves flower pollination. lawyers for the two companies meet to draft a legal document specifying the number of butterflies the farm promises to maintain in exchange for payments to be made by the nursery. which of the following types of private solutions to the externality of pollination has occurred in this case? charities moral codes and social sanctions integration of different types of businesses contracts it’s important to note that sometimes private solutions to externalities do not work. for example, this occurs when communications barriers or social customs are important enough relative to the potential gains involved that (a) the government must step in (b) the private solution is not feasible (c) the market system has a crisis

Astudy that involves interviews of adults is eligible for expedited review. the researcher wants to add an adolescent population (aged 12 to 17) to the study and has designed a parental permission and assent process. no additional changes are planned. which of the following statements about review of the revised protocol is accurate? the research would only be eligible for expedited review if the adolescents are capable of understanding the same consent forms used for the adult population.the research would only be eligible for expedited review if the adolescents have been declared to be emancipated minors.the new research would need full review by a convened irb because children are a protected population.unless the nature of the questions would raise the level of risk to > minimal for adolescents, the research would still qualify for expedited review.

Why is it economically necessary for the east germans to build berlin wall