The answer to this is : B, Their roots.
The organism can be classified under Domain Eukarya or Eukaryote since it is made up of cells that have a nucleus enclosed within membranes. To be more specific, it can be placed under Kingdom Plantae which consists all organisms that are multicellular, eukaryotic, and photosynthetic.
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My teacher once told me it was C.
Answer:
Myelin sheath increases the speed of electrical impulse along the nerve cells.
Explanation:
Myelin sheath is an insulting layer of proteins and fatty acids that are present around the nerves of brain and spinal cord.
Myelin sheath increases the speed of conduction of nerve impulse from one nerve cell to another cell. Myelin sheath is formed by the concentric wrapping of schwann cells around the axon. This sheath decreases axonal membrane capacitance and increases the conduction of nerve impulse.