Provide organs and muscles with the oxygen they need to function
Osmosis of Water Across the Membrane. Osmosis is the tendency for water molecules to move from where there is a higher concentration to where there is a lower one. ... The cell membrane helps to regulate and slow down the flow of water into the cell. This is yet another way that the cell membrane helps maintain homeostasis
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The answer is : Your feet
The secondary succession is triggered by a natural event (forest fires for example) that destroys an established ecosystem. The destroyed forest will then undergo a regrowth process. This secondary growth may look bizarrely different from the way how the original forest used to look like. There are several stages involved after the forest os being burned. The first stage involves the colonization of massively burned places by plants and fungi. The following stage starts when minuscule plants such as grasses dwell in the forest. And then, huge plants that require lots of direct sunlight will move in. Lastly, new trees will continuously grow up to a point where they makeup a forest that remains in time except there are major interventions.