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Alle Oberthemen / Biology / Flowers and Fruits

Flowers & Fruits (15 Karten)

Sag Danke
1
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Define the following terms: flower, sepals, petals, stamens, pistil.
Flower: shoot bearing sporophylls (stamens, carpels)

Sepals: leaf like, green, protect bud

Petals: leaf like, non green, bright

Stamens: filament + anther

Pistil: 1 or more carpels consisting of stigma + style + ovary
Tags: angiosperms, flower, petals, pistil, sepals, stamens
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2
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What did sepals evolve from? Petals? Stamens? Carpels?
Sepals: Modified leaves

Petals: modified leaves OR stamens that lost sporangia

Stamens: reduced microsporophylls OR branches with terminal sporangia

Carpels: folded megasporophylls
Tags: angiosperms, evolution, flowers, sepals, stamens
Quelle:
Kartensatzinfo:
Autor: zeestree
Oberthema: Biology
Thema: Flowers and Fruits
Schule / Uni: University of Hawaii at Manoa
Ort: Honolulu
Veröffentlicht: 20.04.2010
Tags: angiosperms, flowers, fruits
 
Schlagwörter Karten:
Alle Karten (15)
advanced (1)
angiosperms (10)
asteraceae (1)
classification (1)
definition (1)
dehiscent (1)
dry (1)
eudicots (1)
evolution (3)
fleshy (1)
floral symetry (1)
flower (1)
flowers (6)
fruits (2)
indehiscent (1)
infloresence (1)
monocot (1)
orchidaceae (1)
outcrossing (1)
ovary position (1)
petals (1)
pistil (1)
pollination (1)
protandry (1)
protogyna (1)
sepals (2)
sexual reproduction (2)
stamens (2)
trends (1)
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