Answer:
The answer is A or number 1
Explanation:
Potassium, carbon, sulfur, hydrogen, oxygen, nitrogen, calcium, magnesium, sodium, phosphorus, iron, zinc, silicon, fluorine, boron, cobalt, manganese, chromium, and some others
A. bind and unwind double helix
The Central Nervous System<span> (CNS) includes all of the nerves of the Brain and Spinal Cord.</span>
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The Peripheral Nervous System (PNS) includes all of the nerves both sensory and motor connecting the CNS to the muscles, organs, and sensory structures of the body.</span>
