23 Oct 2021
Problem 6
Page 944
Section 33.2: Review Questions
Chapter 33: The Animal Body: Basic form and function
Textbook ExpertVerified Tutor
23 Oct 2021
Background and context
Sleep is essential for all animals as it helps to recharge the brain and keeps metabolic processes functioning efficiently. Sleep patterns vary widely in the animal kingdom as some animals sleep during the day and some during the night. The sleep time also varies from a few hours to up to 20 hours. Some animals go into a deep sleep during the winter or summer months to conserve energy and survive harsh weather and food scarcity.
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