A. THE WORD BUTSIGNALS A CONTRAST BETWEEN THETWO UNITS OF THE SENT...

11. a. The word butsignals a contrast between thetwo units of the sentence. The first unit isdo with humans, has nothing to do withabout the definition of a literal image,whichmigration patterns, nor does it make senseis something that can actually be perceived.when placed in the blanks (freed whomfrom what?). Choice ddoes not relate to theThe second unit of the sentence is contrast-subject of the sentence.ing some type of image with a literal image.