WWB Trainer
WWB History
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Topic:
Plants
SWITCH
From Photosynthesis to Forests
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History Timeline
When
Stuff Happened
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Pine Needles Evolve
Plant Evolution
252.5 Million years ago (+/- 500,000 years)
Needle morphology and resin canals
Plants
Timeline
Ginkgo biloba — A Living Fossil in My Backyard
Plant Evolution
~270 million years ago (± 20 million years)
Increased light capture area
Plants
Timeline
Touch: Life Learns to Feel Force
Touch evolved long before brains.
Evolution
~3.72 Billion Years Ago (after prokaryotes)
Mechanical sensitivity to pressure and membrane stretch
Plants
Timeline
Bikonts: Plant Ancestors Split Off Again (Front-Pull Pioneers)
Plant Evolution
~1.55 Billion Years Ago (+/- 5 million)
Two "Anterior" Flagella – plant rowboats
Plants
Timeline
Protozoa Evolve
Evolution
2 Billion Years Ago (+/- 100 million years)
Nucleus and internal organelles
Plants
Timeline
Ginkgo biloba-like Trees: True Leaves
Plant Evolution
270 Million Years Ago (+/- 5 million years)
Efficient vascular networks inside leaves
Plants
Timeline
Plant Ancestors Split from Animal and Fungi Ancestors
Evolution
1.65 Billion Yeas Ago (+/- 50 million)
Life that later leads to these kingdoms separates.
Plants
Timeline
First True Trees: Spore Reproduction
Plant Evolution
385 Million Years Ago (+/- 5 million years)
Secondary growth wood and deep roots
Plants
Timeline
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WWB Trainer
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