Fig. 3.1 shows a growing plant. The plant is growing in the dark. Fig. 3.1 (i) State the name of the growth response shown by the plant shoot in Fig. 3.1. ................................................................................................................................. (ii) Explain how the growth of the plant shoot in Fig. 3.1 is controlled. ....................................................................................................................................... . ....................................................................................................................................... . ....................................................................................................................................... . ....................................................................................................................................... . ....................................................................................................................................... . ....................................................................................................................................... . .................................................................................................................................

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