Which is the basic functional unit of life?
organism
OP
organ
tissue
cell
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Cell is the basic structural and functional unit of life. Every single organism on this planet is composed of cells. Some organisms are made of one cell which is called unicellular organisms. In Unicellular organisms, single cell is responsible for performing all functions of the cell. Some organisms made of more than one cell which is called multicellular organisms. In multicellular organisms, different cells perform specific functions.

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.