Barber Practice State Board Practice Exam

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What percentage of the human body is made up of water?

  1. 50%

  2. 65%

  3. 70%

  4. 80%

The correct answer is: 65%

The human body is composed of about 60% to 65% water on average, with this percentage varying depending on factors such as age, gender, and body composition. For example, infants have a higher water percentage, typically around 75%, while adult women tend to have a lower percentage than men due to higher fat content, which contains less water. The 65% figure is commonly used as a benchmark for the average adult. Understanding the water composition is vital in various fields, including health, nutrition, and anatomy, as water plays crucial roles in bodily functions such as temperature regulation, nutrient transportation, and waste removal.

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