Surface to volume i think
Answer:
regulating important involuntary bodily2
function such as blood pressure ,heart rate,
breathing,and swallowing
Answer:
Carbon Cycle: the series of processes by which carbon compounds are interconverted in the environment, involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.
Explanation:
