Which of the following lists three primary ways that water leaves the human body?

• A. Photosynthesis, respiration, and transpiration
• B. Osmosis, diffusion, and active transport
• C. Urination, sweating, and exhalation
• D. Digestion, absorption, and filtration

Answer: (C)

Verified step by step guidance

1. Step 1: Begin by identifying the primary ways water exits the human body. Water loss occurs through processes that involve the excretion or evaporation of water from the body.
2. Step 2: Understand the mechanisms of water loss: Urination is the process by which the kidneys filter blood and remove excess water and waste products, which are excreted as urine.
3. Step 3: Sweating is a process regulated by the sweat glands, where water and electrolytes are released onto the skin surface to help regulate body temperature.
4. Step 4: Exhalation involves the release of water vapor during breathing. As air is expelled from the lungs, it carries moisture from the respiratory tract.
5. Step 5: Compare the options provided in the question and eliminate incorrect answers based on biological processes. Photosynthesis, osmosis, and digestion are not mechanisms of water loss in humans. The correct answer is urination, sweating, and exhalation.