“WHY DO WE SLEEP?” (title) 

Constituem respostas verdadeiras para a pergunta em destaque aquelas contidas nos seguintes fragmentos: 

(01) “Phytons, bats and giant armadillos are among the longest sleepers” (l. 4). 

(02) “Professor Jerry Seigel […] conducted a study of the sleep times of a broad range of animals and found that they vary widely.” (l. 7-9). 

(04) “that shows sleep evolved to conserve energy.” (l. 10). 

(08) “Sleep helps make best use of limited resources.” (l. 14). 

(16) “Sleeping also makes us less likely to get injured and less likely to be detected by predators.” (l. 15-16).