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The study of the distribution of organisms in geographic space is called: 

What is the cause of flooding DAMAGE in plants that are not adapted to wetland environments?

The earth’s rotation has a significant and measurable effect on wind circulation and oceanic currents, named: 

Which plant phytochrome responses requires the highest intensity of light and the longest period of exposure to light, and is involved in flowering?

This hormone delays senescence.

Although optimal levels of auxin promote growth and inhibit leaf abscission, when auxin concentration get too high, the opposite things happen (growth is inhibited and abscission is promoted).  Which of the following explain the reason for these opposite effects?

What is the term for plants which are tolerant of relatively high salt concentrations in the soil? 

This hormone can produce parthenocarpic fruit.

Acid rain and acid fog can be harmful to terrestrial plants.  Which of the following is NOT a way that acid deposition harms plants?

During times of water stress, this hormone is responsible for increasing root growth (and thus water and ion uptake in the roots), while slightly inhibiting shoot growth.