Explain+why+the+life+cycles+of+different+organisms+have+varied+lenghts

**__Spermatozoa__-**3 Days
===The cells reproduce as the cells die. The life of the cells depend on the wear and tear of the cell. The location of the body determines the wear and tear of a cell. The faster the cells die the faster they reproduce. Fast reproducing cells are in the skin, hair, intestine, and stomach lining. Slow reproducing cells are in the heart, eye tissue, and kidney. Though some cells do not reproduce.=== ===Red blood cells do not reproduce because of specialization. They are formed in the bone marrow and circulate in the body for their life span. Each circulate lasts about 20 seconds. About 25% of the cells in our body are these red blood cells. Another specialized cell is the white blood cell. This cell also forms in the bone marrow, but it fights infectous disease. There is no certain amount of white blood cells because they form to fight diseases. Soif you have more white blood cells you possibly could have an infectous disease.===

===When the organism dies it doesn't mean the cells die, but when the cells die it doesn't mean the organism dies. For example the cells in our eyes die and reproduce quickly. Which means with more and more cells piling up the harder it is to see. This causes the human body to need bifocals by age 50. On skin the more dead cells on top of the live ones the stronger the skin. But the older the body gets the shorter the skin cells live. On adults they live for about 50 days, but in children they live for about 100 days. Also the older the skin gets the slower it takes the skin to regenerate so the skin will become weak.Cells come in all shapes and sizes and their life span varies accordingly. ===