Other Evolutionary theories of sleep

1. This means they spend more time ______ and less time sleeping. (6)
4. He did his own research, correcting these issues, and found a ________ correlation between metabolic rate and sleep (8)
5. They supports this by explaining that herbivores sleep ____ than carnivores because they have a weaker diet. (4)
6. On the other hand Zepelin et al suggest that ____ strongly correlates with sleep time therefore suggesting sleep is based on foraging requirements. (4)
8. This is evidenced in that activation in the sleeping brain shows similar patterns to those recorded during ________. (8)
9. This suggests that sleep is vital to solidify memories through reactivation and ________. (8)

2. An advantage of all of the evolutionary heories is that they all have ____ validity. (4)
3. Webb came up with the ___________ theory that suggests sleep is adaptive to conserve energy. (11)
7. However ______ sleep for a long time and are quite large, which suggests that this is not true. Although this is only in captivity and not in the wild. (7)
10. Additionally comparisons between species are meaningless because they have different sleep ________. (8)

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