Plants Are Affected by an Array of Pathogens

question 21

Multiple Choice

Plants are affected by an array of pathogens. Which of the following is a likely plant defence/response against disease?

• A)cells near the point of infection destroying themselves to prevent the spread of the infection
• B)production of chemicals that repel pathogens
• C)transcriptional level recognition followed by production of stress proteins
• D)thickening the cuticle so that pathogens have trouble penetrating the tissues
• E)stopping all xylem and phloem movement within infected tissues

Analyze the impact of subsidies on markets and the broader economic implications.

Grasp the conditions under which society benefits from changes in production levels and the interaction of price and marginal cost in competitive markets.

Identify the sources of market failure, including externalities, public goods, and imperfect information.

Discern the difference between efficiency and equity in economic systems.