Visible light<span>, U</span>ltraviolet<span> Rays, X-rays, and </span>gamma rays<span>. The electromagnetic spectrum shows the range of different electromagnetic waves in order of increasing frequency and decreasing wavelength. Radio waves are the electromagnetic waves with the longest wavelengths and lowest frequencies.</span>
Due to osmosis, or the movement of unoccupied water molecules to places where there are fewer of them, water will want to flow into a cell that has lots of ions inside of it. The cell membrane slows the movement of water into or out of the cell, which helps the cell maintain a certain volume.
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A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.
Answer:
A. a protein
Explanation:
Proteins function as enzymes in most of the catalyzing reactions, that increases the rate of reaction within cell.
Proteins are consist of multiple numbers of amino acids and the twisting and folding amino acids provide a unique identity to enzymes. Not all the proteins are enzymes but all the enzymes are proteins.
For example: Trypsin, Pepsin, and Lipases.
Hence, the correct option is "A. a protein".
