Biology
NULL
Medium
Question
Which of the followings is missing from the nervous system of planaria _____________?
A
Ganglia
B
Longitudinal nerves
C
Lateral nerves
D
none of these
✓ Official correct answer
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A
Ganglia
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B
Longitudinal nerves
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C
Lateral nerves
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D
none of these
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Explanation
Planaria has a relatively well-developed nervous system for a simple animal, including ganglia, longitudinal nerve cords, and lateral nerves, so none of the listed structures are missing.