During double fertilization one sperm unites with the ________ to form a zygote,while the second sperm unites with the ________ to form the primary endosperm nucleus.
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Q45: Wind-pollinated flowers usually have large showy petals.
Q46: Flowers pollinated by birds are often which
Q47: The female gametophyte of flowering plants is
Q48: Fruit formation without fertilization is known as
Q49: Flowers are essentially modified branches with four
Q51: Fly-pollinated flowers are usually pale in color
Q52: The highly resistant outer pollen wall called
Q53: In the seventeenth century,a buying frenzy for
Q54: A unisexual flower lacking carpels would be
Q55: A flower pattern of 3s or 6s
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