Scientists use models to understand things that they cannot observe
The tick’s life cycle can be shown in a
A system produces a result or
A complex system involves
Feedback is a type of input.
Output is what happens in a system.
A complex or simple system can be represented in a model.
A model can show your body’s digestive system.
Scientists can use models to predict stability in a system as a result of a change in output or systems feedback.
The bicycle is a(n) environmental system.