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EXAM 3 - Coggle Diagram
EXAM 3
FLOWERS
Origin
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Most primitive extanct
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Dioecious (male OR female) #
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Modifications
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IMPERFECT FLOWERS
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Trimonoecious
All male, female and both sex flowers on 1 plant
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POLLINATION SYNDROME
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Types
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Biotic
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Phaelonophily
Moth :
White, heavy scent, nocturnal
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Myophily
Fly
Dark colour, horrible odor, traps
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Ornithophily
Bird
Recurved petals, no scent, bright
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Chiropterophily
Bat
Nocturnal, Fragrant, white, large
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Cantherophily
Beetle
Sexual organ exposed, fruity
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FRUITS
Occur after double fertilization #
endosperm nucleus divides into endosperm #
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Integument develop to seed coat #
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TRANSPORTATION
Less negative to more negative # #
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Steps to evolution
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Endosporic megagametophyte. Mitosis of spore=megagametophyte. Fertilization occurs in the in the megagametophyte and embryo develops inside
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OVULE DIVERSITY
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Double fertilization
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- Pollen tube grows down style
- Generative cell divides = 2 sperm cell
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Eudicots
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integument becomes seed coat #
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