The myelin sheath is the layer of fat cells that insulates most axons and speeds up the transmission of nerve impulses.
A letter is a type of non-fictional written, typed, or printed communication. These are typically sent to the receiver via mail or postal service in an envelope and are typically written to facilitate communication between two people.
A 12, Civil lines,
XYZ Road,
Delhi.
23 Aug. 2022,
I hope you and your family are doing good. I am writing this letter to let you know the way we celebrate independence day in Ghana. All the streets and roads are decorated with confetti. Firecrackers are being lit everywhere. The kids are getting their faces painted with Ghana's flag. My mother is also cooking a special dinner for all of us. I will send you pictures of the entire event. Thanks!
Yours truly,
XYZ.
To learn more about letter writing refer here: brainly.com/question/23864960
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Answer:
Biodiversity is important because it boosts an ecosystems productivity where each species, no matter how small, all have an important role to play.
Explanation:
