Final answer:
Regional differences in the partial pressures of O2 and CO2 are more common in aquatic environments than in terrestrial environments.
Step-by-step explanation:
Regional differences in the partial pressures of O2 and CO2 are more common in aquatic environments than in terrestrial environments. In aquatic systems, the concentration of dissolved oxygen is related to water temperature and the speed at which the water moves. For example, cold water tends to have more dissolved oxygen than warmer water.