The utility<span> approach </span>helps explain the law of demand<span>. In fact, the </span>demand<span> curve for a normal good is downward sloping due to the </span>law<span> of </span>diminishing marginal utility<span>.</span>
Veins don’t always conduct oxygen poor blood. The pulmonary vein brings reoxygenated blood from the lungs into the heart
<span>The reason behind the lipids which are able to function as protective barriers in cells is that lipids do not dissolve in water.
If lipids dissolve in water, they will not be able to function as protective barriers in cells. N</span><span>ucleic acids, proteins, lipids and carbohydrates are the four types of macro-molecules in the cell.</span>
Answer:
smaller and less smooth i think
