It has rained for several days. A tomato plant root system senses the large amount of water and produces the hormone abscisic acid, which triggers the guard cells to swell. When the guard cells swell, the stomatal pore opens, and water loss increases. Using stored glucose and newly absorbed water, reproduction of flowers begins and tomatoes begin to grow.

1) Written Answer to Scenario 8:
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2) What two systems are interacting in this scenario? ____________ and __________