You Are Part of a Desert Plant Research Team Trying

question 84

Multiple Choice

You are part of a desert plant research team trying to discover crops that will be productive in arid climates. You discover a plant that produces a hormone under water-deficit conditions that triggers a suite of drought responses. Most likely the hormone is

• A) ABA.
• B) GA.
• C) IAA.
• D) 2, 4-D.
• E) salicylic acid.

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Definitions:

Common-Resource Problem

A dilemma in the management of resources that are available to all but are susceptible to overuse and depletion because they are not excludable.

Nontoll Roads

Public roads that can be used without paying a fee, financed by taxes rather than direct user charges.

Public Goods

Products or services that are non-excludable and non-rivalrous, meaning they can be consumed by one person without preventing simultaneous consumption by others.

Common Resources

Resources that are not owned by anyone, but are available for use by everyone, often leading to overuse and depletion.