The entire question mentions Body fluids.
1) Digestive fluids are in the body.
2) Buffers neutralize acids in the body.
3) Water molecule is so important to organisms because it makes up 70-90% of the weight of most forms of life; it also represents the continuous phase of living organisms.
4) Fluids are acids in the body and must be neutralized by buffers.
5)The characteristic of life would be homeostasis. Homeostasis regulates the variables in which internal conditions remain stable and consistent.
6)Organisms must maintain a pH level of seven.
7) The name for the oh- ion is Hydroxide.
8) Neutralization helps return our body's pH to neutral.
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