About __________ of the body weight of a mammal is water ?
Correct answer: C. 70%
- A. 60%
- B. 65%
- C. 70%
- D. 75%
Explanation
Water commonly makes up about 70% of the body mass of a mammal, although the exact percentage varies with age, tissue type, and species. Students may choose 60% because it is a commonly quoted approximate value for some adults, but the standard textbook value here is 70%.
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