a person with a body temperature of 37c hold an ice cube with a temperature of 0c in a room where the air temperature is 20c. the direction of heat flow is

Which of these international trade concepts results in specialization and trade increases in total world output? a) absolute advantage b) balance of payments c) absolute advantage d) international tariffs

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How are 3-d printers useful in studying evolution? a. to color the fossils of organisms b. to create clones of extinct organisms c. to create replicas of fossils d. to prepare paper cutouts of organisms e. to study the composition of fossils