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Through their effect on plant growth regulators, what do the temperature and light control in the plants?

1. Apical dominance
2. Closure of stomata
3. Fruit elongation
4. Flowering

Correct answer: Flowering

Solution

Temperature and light are environmental signals that regulate plant growth regulators, which in turn control the shift from vegetative growth to flowering. This is why flowering is the process most directly controlled by these cues.

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