An analysis of a cell indicated a high lipid content in the membranes, a high protein content in the vesicles being mobilized and transported throughout the cell, and a high carbohydrate content within the cytoplasm. The researcher performing the analysis concludes that the compounds must serve different roles in the cell. However, a chemical analysis of these three compound types is also performed. Which comparison BEST illustrates the similarity and difference in the elemental makeup of these molecules?

Use this dichotomous key for insect identification to identify the insect shown. 1. a. insect has one pair of wings. order diptera b. insect has two pairs of wings. go to #2 2. a. front wings thicker in texture than hind wings go to #3. b. front and hind wings are same texture throughout. go to #4 3. a. front wings are short order dermaptera b. front wings cover entire abdomen order coleoptera 4. a. wings with scale on all parts of their area. order lepidoptera b. wings without scales go to #5. 5. a. hind wings smaller than front wings. order ephemeroptera b. front and hind wings nearly equal in size. order odonata the insect pictured is in the order diptera. ephemeroptera. coleoptera. odonata.