Question detail
What is one way water is lost from the body?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Hormonal coordination in humans
Question
- A. Through the kidneys in urine
- B. Through the lungs during exhalation
- C. Through the stomach in digestion
- D. Through the intestines in feces
Answer
The correct option is Through the lungs during exhalation. This answer is correct because it matches the approved learning objective to describe water loss from the lungs during exhalation and from the skin in sweat in the subtopic Maintaining water and nitrogen balance in the body (biology only).
Explanation
The correct option is Through the lungs during exhalation. Through the lungs during exhalation is correct because it directly supports the approved learning objective to describe water loss from the lungs during exhalation and from the skin in sweat. This belongs to the subtopic Maintaining water and nitrogen balance in the body (biology only) within Hormonal coordination in humans, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Maintaining water and nitrogen balance in the body (biology only).
Common mistake
Misunderstanding Water Loss Mechanisms
Students often confuse the processes of water loss from the lungs and skin, thinking they are the same or only occur under specific conditions.
Clarify that water loss from the lungs occurs continuously during exhalation as a part of respiration, while sweating is a response to temperature regulation and physical activity. Emphasize the different mechanisms and conditions under which each occurs.
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