Exploring Different Organisms and Their Sizes Different organisms have different sizes. If I take an example of two organisms such as an amoeba, which is a single-celled organism, and an elephant, which is a multicellular organism, I can see that they are obviously different sizes.[IMAGE]AMOEBAAmeba[IMAGE]ELEPHANTelephantSince an amoeba is small, It has a large surface area compared to its volume. Because an elephant is large, its surface area is small compared to its volume. As you can see below, if you increase the surface area of ​​an object, the total volume increases but the surface area: volume ratio decreases.3 cm[IMAGE]2 cm[IMAGE] 1 cm[IMAGE]Total SA= 624 54Total Vol= 18 27SA:Vol= 6:13:1 2:1