The ____ is a watertight sac in which the developing child floats during its prenatal development

Alex and Nicole just got married

They move into their new apartment and realize they need a coffee table. Alex takes four stacks of old textbooks and forms the legs of the table. He then takes an old piece of cardboard and lays it across the four "legs." Which cognitive tendency has Alex clearly mastered? A) Mental set B) Functional fixedness C) Creative inhibition D) Availability heuristic

Which of the following is a limitation of the ethnographic method?

A) Research may not yield observations typical of participants' behavior in everyday life. B) Research does not yield as much information as naturalistic observations or structured interviews. C) Commonly used research techniques tend to ignore cultural and social influences that affect development. D) The findings cannot be assumed to generalize beyond the people and settings in which the research was conducted.