Sleep is a difficult problem for dolphins because dolphins __________. a. need more sleep than their predators b. must be awake and aware to breathe c. are unable to dream during sleep d. cannot swim while

Sleep is a difficult problem for dolphins because dolphins __________.

a. need more sleep than their predators

b. must be awake and aware to breathe

c. are unable to dream during sleep

d. cannot swim while they are asleep

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Sleep is a difficult problem for dolphins because dolphins __________. a. need more sleep than their predators b. must be awake and aware to breathe c. are unable to dream durin…

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