<h3><u>Answer;</u></h3>
Biogeochemical cycles
<h3><u>Explanation</u>;</h3>
- <em><u>Biogeochemical cycles are cycles through which earth's elements undergo chemical reactions that build molecules, destroy molecules, and change molecules into other molecules, reusing the same atoms over and over.</u></em> These cycles includes a variety of chemical, geological and biological processes.
- The major biogeochemical cycles include; water cycle, carbon cycle, nitrogen cycle and oxygen cycle. These cycles function to conserve and recycle matter which is part of living organisms.
Well, recycling is our the way for us to use a material over and over again. That means that we don't need to make the same material, we can just reuse it again by taking the old one and making the new material again. So we don't need to use any human labor, fuel for trucks, or whichever things they need to get plastic, aluminum, wood for paper, etc.
Circulatory system because, movement causes circulation and movement is only possible by our muscles.
The function is it decides which cells come in and out and it’s structure would be the phospholipid bilayer