Hunter-gatherers were prehistoric nomadic groups that harnessed the use of fire, developed intricate knowledge of plant life and refined technology for hunting and domestic purposes as they spread from Africa to Asia, Europe and beyond. From African hominins of 2 million years ago to modern-day Homo sapiens, the evolution of humans can be traced through what the hunter-gatherers left behind—tools and settlements that teach us about the hunter-gatherer diet and way of life of early humans. Although hunting and gathering societies largely died out with the onset of the Neolithic Revolution, hunter-gatherer communities still endure in a few parts of the world.
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the medulla spinalis never receives the message from pressure detectors in the skin. myelinated neuron is perhaps affected
<h3>What happens when neurons are myelinated?</h3>
Myelin can greatly increase the speed of electrical impulses in neurons because it insulates the axon and assembles voltage-gated sodium channel clusters at discrete nodes along its length. Myelin damage causes several neurological diseases, like multiple sclerosis.
<h3>How does a nerve become myelinated?</h3>
The surface of the nerve axon is made by the lipid bilayer membrane that is embedded with various proteins including ion channels. Myelinated nerve axons are surrounded by Schwann cells. Schwann cells produce myelin that wraps round the axons to form the myelin sheath.
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A. The president only works at the White House when making an official speech for television.
Answer: the cost begins to increase when the producer makes four pies
