Magnification is defined as a measure of the ability of a lens or other optical device to magnify a certain image. The ability of a lens to measure size of an object and magnifies to a certain level is the known as a magnification of a lens.
The formula to measure the magnification power of a certain lens is the product of the objective and ocular lens magnification. For example, when using the lower power lens the total magnification is: 10X ocular x10X low power objective = 100X).
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The meninges is a layered unit of membranous connective tissue that covers the brain and spinal cord. These coverings encase central nervous system structures so that they are not in direct contact with the bones of the spinal column or skull.
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Ao & oo
i don't really know if the answer is this....
Rods are responsible for vision at low light levels so B
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They lose their end walls so the xylem forms a continuous, hollow tube. They become strengthened by a substance called lignin . Lignin gives strength and support to the plant.
