Final answer:
A concept map is the most suitable diagram to demonstrate relationships between ideas or parts of a system.
Explanation:
Concept map is the best diagram to show how ideas or parts of a system are related. It visually represents concepts and their relationships through boxes and arrows. For instance, a concept map can link different components of a biological system to illustrate their interconnections.
Learn more about Concept mapping here:
https://brainly.com/question/25646607
