Solved UPSC CDS/OTA Question
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Q · Human Skeletal System Medium · 45s
The sacrum is formed by the fusion of ___ vertebrae.
TopicHuman Skeletal System
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Five sacral vertebrae fuse into a single triangular bone.
Final Answer: Option C - 5