Bizarre Body Secrets: A Hard Quiz
Challenge yourself with five tough queries about the human form's most unexpected traits.
Quiz Questions
Answer all questions below and test your knowledge.
- 1
Which muscle generates the greatest force relative to its size?
- 2
Approximately how many microorganisms inhabit an adult's colon?
- 3
Which region of the brain consumes the most oxygen during normal activity?
- 4
How many bones are present in a newborn before fusion occurs?
- 5
Which vitamin is produced in skin cells when exposed to UV‑B light?
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