The cell is fundamental unit of structure and function in living organisms .All cells arise from pre-existing cells by division . The cell theory states that the cell is the basic unit of life and that all other cells are developed from an existing cell. This theory was developed way back in the mid of 17th century.
<span>Sodium channels close when not occupied
</span><span>Sodium ions diffuse through and enter the cell.
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Then they leave the cell.
The sodium diverts in the cell layer have receptor locales for acetylcholine.
Stay inside!
If you can't find shelter stay in your car but do not stand underneath a tree for fear of lightning!
The answer is d/ the fourth one
Answer:
Explanation:
Water dissolves nonpolar covalent substances.
