The function of the central cell that is fertilized by a sperm to a triploid state is: Secondary zygote Act as a companion cell to the developing phloem Direct the sperm to the egg Develop into a nutrient storage for the embryo All of the above

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i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

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carbon atoms, hydrogen, oxygen, and nitrogen.