Yucca Flowers Are Pollinated Only by Yucca Moths, Which Lay

question 3

Multiple Choice

Yucca flowers are pollinated only by yucca moths, which lay their eggs in the flowerʹs ovary. This interaction ensures that the plant has seed for the next plant generation and that the moth larvae have a food source to develop. What is a potential disadvantage or vulnerability of this very specialized plant-animal interaction?

• A) Pollination can occur only during the day, but the moths are most active at night.
• B) The plant ovary may be consumed by the larvae, which would kill all the developing seeds.
• C) Other moths that do not serve as pollinators may outcompete the yucca moths.
• D) If the moths are exterminated by insecticides, the plant-animal interaction ceases and the plant will no longer be pollinated or reproduce.

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Definitions:

Supply Increases

Refers to a situation where the quantity of a good or service that producers are willing and able to sell at a given price level rises, often leading to a decrease in prices if demand remains constant.

Equilibrium Price

The cost at which the amount of a product or service being sought after matches the amount being offered, resulting in a stable market.

Equilibrium Quantity

The quantity of goods or services supplied is exactly equal to the quantity demanded at a particular price.

Shift Demand

A change in the quantity demanded at every price level, resulting in the demand curve moving left or right.