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Post-fertilization changes in flower

 The diploid zygote gives rise to the embryo and future plant.
 After fertilization, ovary becomes fruit and ovules turn into seeds.
 All other parts like, sepals, petals, stamens shrivel and fall off only pistil
remains attached to the plant.

 The ovary wall is transformed into a protective layer called the pericarp which
covers the fruit.

Parts of a seed
 The three primary parts of a seed are the embryo, endosperm, and seed coat.
 The embryo is the young multicellular organism before it emerges from
the seed.
 The endosperm is a source of stored food, consisting primarily of starches.
 The seed coat consists of one or more protective layers that encase the seed.
 The mechanism involving two acts of fertilisation in an embryo sac is called
double fertilisation.

Parts of a dicot seed

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