Regarding Sleep, Which of the Following Statements Is FALSE

question 209

Multiple Choice

Regarding sleep, which of the following statements is FALSE?

• A)Sleep is caused by the accumulation of sleep-promoting chemicals in the blood.
• B)If the sleep hormone is extracted from one animal and injected into another, the second animals will sleep deeply for many hours.
• C)Although their bodies are joined together at birth, it is not uncommon for one conjoined twin to be awake and the other to be asleep.
• D)Whether one is awake or asleep depends on the balance between separate sleep and waking systems.

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