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🌱 KNOW PRIMARY · AGES 6 to 11

PLANTS &
BOTANY

🌱 From Tiny Seeds to Ancient Giants, The Living World!

📖 200 Topics 🆓 FREE + PRO ⏱️ 5 min per comic 🧠 Quiz included
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OCEAN ALGAE
500 Million Years Ago
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FIRST STEP
470 Million Years Ago
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VASCULAR SYSTEM
430 Million Years Ago
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ROOTS & STEMS
400 Million Years Ago
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FIRST FORESTS
385 Million Years Ago
🌿 HOW PLANTS CONQUERED LAND
TOPIC 02 · PLANTS & BOTANY · DEVONIAN PERIOD · 430 MILLION YEARS AGO
PAGE 1 OF 5, TRAPPED IN THE WATER
430 MILLION YEARS AGO
Ancient Earth with green algae in oceans and completely bare barren rock on land
A WORLD WITH NO LAND PLANTS
For billions of years after life appeared, algae ruled the oceans, but the land was completely bare. No grass. No trees. No moss. Just naked rock, sand, and barren soil baking under the sun. The entire surface of Earth was as empty as the moon.
EMPTY!
THE EDGE
Green algae clinging to wet coastal rocks at the waterline before land colonisation
🌊 Green algae clings to wet coastal rocks
🪨 Every tide brings it closer to land
THE PROBLEM
Algae cells drying out and dying when exposed to harsh UV radiation on land
☀️ Out of water = desiccation death
💀 UV radiation destroys unprotected cells
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