Commensalism Is Best Described as A(n)

question 12

Multiple Choice

Commensalism is best described as a(n)

• A) unsuccessful microbial invasion due to the presence of preexisting microbes.
• B) relationship between two organisms where only one member benefits and the other is unharmed.
• C) relationship between two organisms where both members benefit.
• D) relationship in which a microorganism causes disease.
• E) source of contamination.

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Definitions:

Two-phase Power System

A two-phase power system is an electrical power distribution method that uses two alternating currents, which are offset in phase by one-quarter of a cycle (90 degrees).

Phase

A measure of the position of a point in time on a waveform cycle, often used in the context of alternating currents to describe the difference in timing between two waveforms.

Consequent-pole Motor

A type of electric motor design that uses additional poles (generated by connections in the winding) to improve torque and reduce pulsations in multi-phase systems.

Running Torque

The torque a motor produces at its rated speed and voltage, crucial for understanding the operational efficiency of the motor.