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The cns (central nervous system) is lacking in animals that have ________.
a. a complete gut
b. a closed circulatory system
c. radial symmetry
d. excitable membranes

Sagot :

The central nervous system is lacking in animals that have radial symmetry because radial symmetry has a shape of symmetry where distinguishable parts are organized in circular mold around the central p-ivot. Thus, option C is correct.

What is radial symmetry?

Radial symmetry is a form of symmetry in which identical parts are arranged in circular pattern around the central axis.

Animal having radial symmetry can be divided into equal halves when cutting through the central axis.

Animals such as starfish, Hydra and coelenterata shows radial symmetry.

Therefore, the central nervous system is lacking in animals that have radial symmetry.Thus, option C is correct.

Learn more about radial symmetry here:https://brainly.com/question/15970176

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