Phospholipids consist of a polar molecule, a phosphate group, a glycerol unit and two fatty acids. They are found in cell membranes, which enclose the cytoplasm and other parts of a cell. Steroids include cholesterol, cortisone and sex hormones, such as estrogen, testosterone and progesterone. They have a carbon backbone that contains four fused ring-like structures.
These are common questions, particularly after someone finds out their score from an IQ test. Lewis Terman (1916) developed the original notion of IQ and proposed this scale for classifying IQ scores: Over 140 - Genius or near genius. 120 - 140 - Very superior intelligence.
Quick Answer. The average American IQ ranges between 90 and 100. Individuals with IQ scores between 160 and 165 are considered extraordinary geniuses, and those with scores of 145 to 179 are considered geniuses. A score of 115 to 144 is considered above average, and scores between 85 and 114 are considered average. Continue Reading