Central nervous system is present in:
Correct answer: B. Bilaterally symmetrical animals
- A. Asymmetrical animals
- B. Bilaterally symmetrical animals
- C. Radial symmetrical animals
- D. Both B and C
Explanation
A central nervous system (CNS) is a network of nerves that controls the body's functions. It is made up of the brain and spinal cord.Only bilaterally symmetrical animals like insects, fish and mammals have a CNS.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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