Question

1) Which of the following statements about sleep is true?

A)The brain’s activity is much lower than during wakefulness

B) The body’s metabolism is much lower and burns half the amount of calories compared to during wakefulness

C) Sleep is beneficial but not necessary.

D) Sleep is evolutionarily ancient.

2) There are many hypotheses about why people sleep. Which of the following is not one of these hypotheses?

A) Sleep allows the brain to clear out waste that accumulates during normal daily activities.

B) Sleep allows the brain to process and consolidate memories.

C) Sleep saves energy by reducing activity for a long period of time.

D) Sleep allows the body to direct energy towards digestion.

3) Which of the following statements about sleep is true?

A) Only animals with large, complex brains (like apes) sleep

B) Only mammals sleep

C) Only vertebrates sleep

D) All animals with a brain sleep or exhibit sleep-like behavior

Answer 1

1. The following statements about sleep is true

  Sleep is evolutionarily ancient since, jellyfish are the most evolutionarily ancient animals known to sleep.

The body’s metabolism is much lower and burns half the amount of calories compared to during wakefulness since during awakening period we burn calories by simple exercise and daily activities.

3. All animals with a brain sleep or exhibit sleep-like behaviour.

2. The answer to question second is sleep allows the brain to process and consolidate memories is a hypothesis which is not the reason why we sleep.