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• why did confucian officials want to stop voyages and foreign trade during the ming dynasty? choose two correct answers. they opposed having wealth. they felt it weakened chinese government. they disliked the fighting with other peoples. they wanted to weaken the ming emperor. they believed it could hurt chinese culture.
  
• los hispanos prefieren las llamadas para comunicarse con sus familias y con sus amigos. cierto falso
  
• what research on intact brain patients resulted in the understanding of the relative speeds of verbal and virtual-spatial processing in the two hemispheres?
  
• a ________ shot is when the camera is mounted on a dolly to move smoothly along with the action.
  
• the following images show earth and the four jovian planets of our solar system. rank these planets from left to right based on their mass, from lowest to highest. (not to scale.)
  
• a limited-resource farmer __________. a. lacks access to capital and labor b. sells to a highly specialized market c. is able to farm more efficiently using fewer resources d. is compensated with tax benefits for using fewer resources
  
• a gene that codes for one of the polypeptide chains of the blood protein hemoglobin lies on chromosome 11 in humans. a substitution mutation in that gene causes the amino acid valine to be incorporated into hemoglobin in a place where glutamic acid would normally lie. the result is sickle cell disease. explain how a change in a single base in dna can bring about such a serious disorder.
  
• what is natural selection? a process that selects variations that help with survival and that spreads the variations to more offspring a process through which nature selects an individual within a population for extinction a process that causes all populations to gradually increase in size a process that causes random variations to appear in the offspring of every generation
  
• fill in the terms that best complete the statement. causes movement of an object, whereas is the work done on an object in a given amount of time.
  
• read the passage and study the drawing from sugar changed the world. a drawing from 1623 shows slaves working at various tasks on a sugar plantation. how does the image most support the central idea of this text? it emphasizes how time-consuming the sugar-making process was. it illustrates the importance of a warm climate to sugar production. it shows the large numbers of workers and tasks required to refine sugar. it clarifies the many differences between producing sugar and producing honey.