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Quizzes

1. After their experiment, the Darwins concluded that grass stems bend toward light because:→The epidermis senses light and absicisic acid builds up on the dark side of the stem.
2. Secondary growth makes plants:→Wider
3. In the ABC model of flowering, which gene doesn’t do anything by itself?→B
4. In order to flower, long day plants need:→Day length longer than their critical photoperiod
5. Which plants have alternation of generations?→Bryophytes
6. What are the main tissues in plants?→tracheids and vessel elements
7. Which cells are dead when functional?→Sporocytes
8. The layers of which tissue form wood?→Secondary xylem
9. Which plant cell is correctly paired with its tissue?→Guard cell—dermal tissue
10. Which can be found in leaves?→Spongy mesophyll and palisade parenchyma
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