The relative balance within an optimal range also known as homeostasis
Drinking water might help keep the kidneys in homeostasis.
Answer:
rainfall, changes in water level, earthquakes
Answer:
Lichens that colonize bare rock secrete acids that break down the rock and start the soil-production process. Also, as lichens die, they provide some organic matter that also contributes to soil. Mosses can then colonize the thin soil; as mosses die, the soil thickens more allowing other hardy species to colonize
Explanation:
