How the Timer Works
Examples
- A tulip knows it's spring because the days get longer and the nights get shorter.
- Dandelions bloom in the morning and close at night like tiny sunflowers.
- A flower in a greenhouse might start blooming earlier if someone changes the light hours.
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See also
- How Do Birds Migrate So Far?
- What Causes Hiccups?
- How Can a Single Seed Grow into a Tree?
- Why Do People Have Different Shapes of Faces?
- Why Do We Blink?
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Categories: Biology · plants,biology,photoperiodism