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3 Cards in this Set

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  • Back

What is a flower? (l8)

1) “A modified, determinate shoot system bearing stamens and/or carpels





Flower diversity


• Size
• Sex: imperfect (male or female), perfect (male AND female) • Color
• Shape: e.g., actinomorphic vs. zygomorphic
• Number of floral parts: e.g., 5-merous vs. 6-merous
• Presence/absence of floral parts (complete vs. incomplete)


What characterises angiosperms?


(l8)


What characterises angiosperms?


• Flowers:
• Stamens with 2 lateral thecae (two microsporangia each) • Reduced, 3-nucleate male gametophyte
• Carpel formation
• Ovules with two integuments
• Reduced 8-nucleate female gametophyte

whats an integument?


(l8)

integument is the natural covering of an organism or an organ, such as its skin, husk, shell, or rind