Biological Clocks: Circadian Rhythms Quiz

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GeneralBiologybiologyliving-thingscellsevolution
Biological Clocks: Circadian Rhythms: a General level Biology quiz. Test your knowledge with 13 questions!
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Questions

Question 1
What is the natural 24-hour cycle of living organisms called?
A Digestive cycle
B Circadian rhythm
C Breathing cycle
D Reproductive cycle
Question 2
Which hormone is known as the 'sleep hormone'?
A Insulin
B Adrenaline
C Testosterone
D Melatonin
Question 3
What part of the brain controls the circadian rhythm?
A Hippocampus
B Brain stem
C Suprachiasmatic nucleus
D Cerebellum
Question 4
What is the primary environmental cue for the biological clock?
A Light
B Sound
C Food
D Temperature
Question 5
What does REM stand for in sleep stages?
A Real Evening Motion
B Random Electrical Moment
C Rapid Eye Movement
D Resting Energy Mode

📋 This quiz has 13 questions in total.

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