Multiple choice

Blood makes up about _______ percent of our body weight.

  1. 10%

  2. 9%

  3. 8%

  4. 12%
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Blood constitutes approximately 8% of total body weight in an average adult. This percentage can vary slightly based on factors like age, sex, and overall health. The other options (9%, 10%, 12%) are not accurate representations of blood's proportion of body weight.

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