Final answer:
Hierarchy charts do not provide detailed steps within a function, unlike flowcharts or pseudocode which depict specific actions and logical flow. Pie charts and bar graphs can be manipulated presentationally to emphasize different aspects of data.
Step-by-step explanation:
The hierarchy chart does not show the steps that are taken inside a function. Therefore, hierarchy charts do not replace flowcharts or pseudocode. These tools are essential for illustrating the specific actions that occur within each function or procedure, demonstrating the logic flow and individual operations that are too detailed for a hierarchy chart to convey.
Considering the presentation choices in graph representation, it's important to understand how chart types like pie charts and bar graphs can be manipulated to emphasize particular aspects of the data. Choices in categorization for a pie chart can make some slices appear disproportionately large, while adjusting the scale of a bar graph's vertical axis can make variations in bar height appear more or less pronounced.
In order to represent data effectively and clearly, one must understand not just the broad structure illustrated by hierarchy charts but also the detailed workings and logical steps as depicted by flowcharts and written in pseudocode.