The first flowering plants had a Polygonum type of embryo sac.
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Q36: The mature megagametophyte consists of _ nuclei
Q37: Sporopollenin is the primary constituent of the:
A)integument.
B)nucellar
Q38: The mature female gametophyte is called a(n):
A)embryo
Q39: In embryo sac development, the egg apparatus
Q40: Which of the following statements concerning pollen
Q42: As the seed develops, the ovary wall
Q43: The integuments envelope the nucellus except at
Q44: Myco-heterotrophs have an obligate relationship with a
Q45: Radially symmetrical flowers are said to be
Q46: The function of the endosperm is to
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