Why is systems thinking important? Systems thinking ignores the details of a system and just looks at its overall function.
Systems thinking ranks the parts of a system in terms of most important to least.
Systems thinking allows us to understand all the parts that make up the whole system.
Systems thinking examines how a system affects human life.

Systems thinking allows us to understand all the parts that make up the whole system.

Explanation:

Just took the test

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.