In Some Chordates,the ________ Is (Are)replaced by ________

question 24

Multiple Choice

In some chordates,the ________ is (are) replaced by ________.

• A)pharyngeal pouches; gills
• B)dorsal hollow nerve cord; a ventral solid nerve cord
• C)gill arches; pharyngeal pouches
• D)notochord; a dorsal hollow nerve cord
• E)a vertebral column; notochord

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Definitions:

Magnetic Pole Fields

The regions at the two ends of a magnet where the magnetic force is strongest, known as the north and south magnetic poles.

Synchronous Speed Calculation

Synchronous speed calculation is the process of determining the speed at which the magnetic field of an AC motor rotates, which is based on the frequency of the power supply and the number of magnetic poles in the motor.

Locked Rotor Current

The current drawn by an electric motor when the rotor is not turning and power is applied, typically higher than the running current.

Supply Voltage

The electrical potential difference provided to power an electronic circuit or device.