Which Statement About the Cassiopiea Jellyfish Is True

question 6

Multiple Choice

Which statement about the Cassiopiea jellyfish is true?

• A) These jellyfish have a centralized nerve net that controls rhythmic contraction of the feeding musculature.
• B) Interconnected motor neurons are used for coordinated movement.
• C) The rhopalia control coordinated bell muscle contraction via connections with a motor nerve net.
• D) There is no need for coordinated movement in these filter feeders.

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Definitions:

Like Polarity

Term referring to the same electrical charge or magnetic direction between two points or objects.

Unlike Polarity

Refers to the condition where two or more magnetic or electrical fields have orientations that are opposite to each other.

Lines of Flux

Imaginary lines used to represent the strength and direction of a magnetic field around a magnet.

Rotor Bars

Metal bars mounted in the rotor of an induction motor, which conduct current and create a magnetic field that interacts with the stator to produce torque.