Content protected from screenshots
GKFix.in
Current Affairs
General Knowledge
Categories
Concept Builder Quiz
About Us
Start Quiz
GKFix.in
Home
Current Affairs
General Knowledge
Categories
Concept Builder Quiz
Start Quiz
GKFix MCQ Question
Test your knowledge and learn something new
Home
Human Physiology
Question #20461
Back to Home
View All Human Physiology Questions
11 Views
Question
Which hormone helps regulate the sleep-wake cycle?
A. Cortisol
B. Thyroxine
C. Melatonin
D. Epinephrine
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
Which direction does the reaction involving CO₂ and H₂O proceed in the lungs?
13
What is the primary function of carbonic anhydrase in red blood cells?
5
What is the significance of the dome-shaped diaphragm?
9
Why is the CRPF sending commandos to Libya in July 2025?
(Current Affairs)
15
Which country is reportedly working on acquiring a long-range nuclear ballistic missile that could r...
(Current Affairs)
17