Maloof_21AB_Angio_II

Maloof_21AB_Angio_II - Lecture 21 (Feb 12): Flower/fruit...

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Lecture 21 (Feb 12): Flower/fruit variation. Co-evolution and plant/animal interactions Variation in flowers Asteraceae Orchidaceae Variation in fruit Plant animal interactions case studies • Specialist pollinator: fig/wasp • biochemical interactions – general – milkweed/monarch butterfly Nicotiana attenuata
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Clicker Scoring Clicker points accumulate throughout the quarter Your final clicker score is based on the total # of clicker questions asked throughout the quarter It is not possible to accumulate enough points to “stop early” and still receive a maximum clicker score.
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Lecture 21 (Feb 12): Flower/fruit variation. Co-Evolution and plant/animal interactions Variation in flowers Asteraceae Orchidaceae Variation in fruit Plant animal interactions case studies • Specialist pollinator: fig/wasp • biochemical interactions – general – milkweed/monarch butterfly Nicotiana attenuata
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Asteraceae Daisies, sunflowers, dahlias, lettuce Second largest family of flowering plants: ~ 22,000 species Dicot
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A sunflower is a single flower – A. True – B. False
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Sunflower ( Helianthus annuus ) •Asteraceae have an interesting floral variation, a head inflorescence.
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Helianthus close-up one “flower” is actually an inflorescence of many flowers
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Helianthus close-up
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This document was uploaded on 08/21/2011.

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Maloof_21AB_Angio_II - Lecture 21 (Feb 12): Flower/fruit...

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