Using a Site in Northern California,you Repeat Stiling and Drake's

question 16

Multiple Choice

Using a site in Northern California,you repeat Stiling and Drake's experiments in elevated and ambient CO₂ chambers,and achieve similar results.However,you notice that for one species of herbivore,the mortality rate from predators and parasitoids is equal in the elevated and ambient chambers,while the mortality rate due to nutritional inadequacy is higher in elevated chambers.The herbivore species in question is native to Asia and has only recently arrived in the United States.What is a likely explanation for your findings?

• A)The Asian herbivore does not take longer to complete development in elevated CO₂ chambers,so it is not subject to additional enemy attack.
• B)CO₂ becomes toxic to the Asian herbivore at the levels found in the elevated chambers.
• C)The Asian herbivore takes longer to complete development in the elevated chambers,but has very few natural enemies due to its foreign origin.
• D)Individuals of the Asian herbivore species thrive in the elevated CO₂ chamber,growing so large that natural enemies no longer attack them.

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Definitions:

Longitudinal Speed

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The frictional force between a vehicle's tires and the surface it is on, allowing for movement without slipping.

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A device used in automotive brake systems that uses vacuum pressure from the engine to amplify the driver's pedal force, reducing the effort needed to brake.

Firewall

A part of a vehicle's body or a computer system designed to block unauthorized access while allowing authorized communications.