The Nucleus The nucleus is the control center of the cell. The nucleus of living cells contains the genetic material that determines the entire structure and function of that cell.
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A. Mountain lion, it is the only one connected to the deer
Phlebotomy is a technique in which a needle is temporarily inserted into a vein to provide venous access for venous blood sampling.<span> [1, 2, 3] </span><span> Veins have a three-layered wall composed of an internal endothelium surrounded by a thin layer of muscle fibers, which in turn is surrounded by a layer of connective tissue.
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Species are diverse because there are so many and they are all different. Each species is biologically diverse from another. Biodiversity leads to adaptations and natural selection.
