The endosperm is formed by a fusion between the and '

The endosperm is formed by a fusion between the sperm nucleus and two haploid polar nuclei.

Endosperm is a tissue surrounding the embryo of flowering plant seeds, which provides nutrition to the developing embryo. Endosperm formation involves double fertilization. There is fertilization of one sperm nucleus to produce a zygote, while the other sperm nucleus fuses with two haploid polar nuclei to form an endosperm cell. Endosperm is triploid because three cells are fused together.

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics

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