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13 cards from this deck
Investigate effect of light or gravity on growth of newly germinated seedlings
Same temperature and same amount of water
Daily for a week
Well-lit area (e.g., under a lamp)
Dark box or lightproof enclosure
Vertical position (so seedlings grow horizontally)
Towards light source (positive phototropism)
Taller and more spindly
Downwards (positive gravitropism)
Upwards, away from gravity (negative gravitropism)
Shaded side
Accumulate on lower side, inhibit growth (bend down)
Accumulate on lower side, promote growth (bend up)
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