Water in the human body is derived from the following sources except through

Water in the human body is derived from various sources such as drinking water, food substances, cytoplasm of worn-out cells, and respiratory activity. However, water is not typically absorbed by the skin. Drinking water is one of the main sources of water for the human body. Water from the food we eat and metabolic water produced during the breakdown of nutrients in our body also contribute to our body's water content. When cells in our body break down, water is released into the body, contributing to our overall water content. Respiratory activity also contributes to our body's water content. When we exhale, we lose water in the form of water vapor. While the skin does play a role in regulating water balance in the body, it is not a significant source of water absorption. The skin helps to prevent excessive water loss through evaporation and sweating, but it does not typically absorb water from the external environment. Therefore, the correct answer to the question is "absorption by the skin."