Extracellular fluid (ECF) is all body fluid outside of cells.
Water
Internal environment
water
water water water
i believe it s "Water", however, i am not entirely sure.
It is in almost all body fluids.
Interstitial fluid is the basic fluid from which all others are derived, including blood, lymph, and all extracellular fluid. Hormones are chemical messengers and are transported by blood, thought they themselves are not considered a body fluid.
Water.
You need fluids so that your body can function correctly, such as water to stop your body from drying out and blood to keep all your body parts working.
Interstitial fluid
water provides the basis for body fluids of all types :) -darlene de la rosa2992
Fluids and solids