The answer is D<span>. Cell walls are made of cellulose. Cell membranes are made of proteins and phospholipids
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The best and most correct answer among the choices provided by your question is the first choice or letter A. Margarines are products <span> made up of fatty acids that are derived from alkenes.
</span>The main ingredients in most margarines are vegetable oils like soybean or safflower oil.Vegetable oils<span> are mostly unsaturated, which is a problem because unsaturated oils are liquid at room temperature and cannot be used as spreads.
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<span>(</span><span>A. specialized cells that perform specific functions)</span><span>
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Holder you just got to get the products