In many plants, the morphology and physiology of leaves is different in the sun and the shade. Suggest at least two ways that growing shoots might detect whether they were in the sun or the shade. Design a test to discover the mechanisms by which plants perceive this difference and change the developmental patterns of leaves. For the first way, I know that concentration of Far Red Phytochrome plays a key role in sensing about of sunlight, but I am unsure of the second or how to test it.