D Because supports large numbers of plants and species and variety of crops
Two factors infuence the regions photosynthetic productivity which would be the amount of solar radiation and the availability of nutrients because solar radiation is needed as well as nutrients which keeps the plant healthy
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Lubricants, Magnetic Levitation, Ball Bearing
<span>Epithelial tissue is densely packed cells that used most in the area where protection is needed. This cells mostly used in skin, some with more keratin which will increase their ability to protect. In bone, the main protective layer is calcium mineral which was deposited by osteocytes. Because this bone doesn't really need more epithelial cells. Bone tissue only needs a good vascularization and connective tissue to support it.
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