Note

Closed Systems: an isolated system that has not interaction with the surrounding
Isolated Systems: a system which none of the matter or energy interfere with. these systems cannot be found naturally
universe – temperature changes but boundaries do not change because they do not change into something else
homeostasis – balancing everything around us and outside world
negative – decrease
positive – increase

Negative feedback
a reaction to a system which causes decrease in a function in order to maintain equilibrium
works by reducing the effect of one system

flow: movement through a system in the form of inputs and outputs. can be either transfers or transformations
storage: the stock or reservoir f energy and matter in a system
flow (input and outputs) and storage (matter of energy or stock) is energy and matter flow through and stored in our ecosystem

open system
system that interacts with other systems or the environment. by exchanging matter and energy with its surrounding