all of the above can be considered ecosystems
Answer:
removal if metabolic waste
Explanation:
Precipitation of water on the land surface in the hydrologic cycle leads directly to evaporation, filtration and run off
When water is release from clouds in the form of rain, sleet, hail, freezing rain, or snow precipitation happens. It is the main connection in the water cycle that gives for the transfer of atmospheric water to the Earth.
Answer:
Blood is carried away from the heart by arteries. Blood that is rich in oxygen. Blood that is low in oxygen is returned to the heart by veins. there is more pressure in arteries than in veins.
Systematic separation of the circulation of the blood. The right side of the heart receives oxygen-poor blood from your body and pumps it to the lungs. The lungs oxygenate the blood which returns to the heart and is pumped to the rest of the body by the left side of the heart. After which the blood returns to the right side, completing the cycle of circulation.