1. Tardigrade
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  3. Biology
  4. Statement I: Myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon. Statement II: Unmyelinated nerve fibre is not enclosed by a Schwann cell and hence does not form a myelin sheath around the axon

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Q. Statement I: Myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon.
Statement II: Unmyelinated nerve fibre is not enclosed by a Schwann cell and hence does not form a myelin sheath around the axon

Neural Control and Coordination

Solution:

• The myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon.
• Unmyelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath around the axon, and is commonly found in autonomous and the somatic neural systems