Explain the role of the digestive, endocrine, and excretory systems in maintaining homeostasis.

The digestive system maintains homeostasis by creating the proper pH balance in the gastric environment. In addition, by maintaining the correct enzyme ratio, the digestive system nurtures beneficial bacteria that inhibit disease and produce biological substances the body needs such as vitamin K.

Homeostasis is the balance the body maintains to continue to function properly. All the bodily systems, including the digestive system, contribute to homeostasis. The body maintains homeostasis using both positive and negative mechanisms. Negative feedback occurs when the body senses an imbalance, and the various systems work to counterbalance and restore proper equilibrium. Positive feedback happens when the body senses a change and works to enhance it.

b. the carbon cycle ensures living things have a source of hydrogen

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.