A Grounds Crew Manager of a Large Park Is Tasked

question 58

Multiple Choice

A grounds crew manager of a large park is tasked with guarding the land against invading species. He is aware that a certain weedy plant could not withstand average winter conditions in the area, but it could survive during a particularly mild winter. The most conservative conclusion the manager might come to about the risk of this plant as an invasive species is that the plant

• A) could potentially be an invader if climate change causes colder winters.
• B) could potentially be an invader due to variation in physiological capabilities among individual plants.
• C) could potentially be an invader due to biotic resistance.
• D) does not pose a threat.

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Definitions:

Controller

A device or set of devices that manages, commands, directs, or regulates the behavior of other devices or systems.

Main Power Lines

The primary electrical transmission and distribution lines carrying high voltage electricity from power plants to substations before distribution to consumers.

Fault Relay Contact

An electrical switch that opens or closes in response to a fault condition, used for safety or control in electrical circuits.

Processor Malfunction

An error condition in which the CPU of a computer or industrial control system fails to operate correctly.