A fountain is generally not considered a closed system because it involves the exchange of water with the surrounding environment. Water circulates from a reservoir, is propelled into the air, and then falls back into the basin, which allows for evaporation and potential loss of water. In a closed system, there would be no exchange of matter with the environment, whereas a fountain continuously interacts with it.
Amphibians have closed circulatory system Closed
Brown bear have a close circulation system
Closed System
The light bulb is a closed system: no mass transfer.
You can only throw a regular axe into the fountain. Only when your gates are closed you can do it and you have to be in front of the fountain to press C. Then a character named Serena appears above the fountain and if you want to get along then you need to answer the questions the right way. The choice is up to you. you cant throw your axe in the city fountain
The closed system prevented the flys in.
Yes it has a closed circulatory system
closed circulatory system
closed circulatory system (double circulatory system)
closed
Platypuses have a closed circulatory system.
Momentum is constant in a closed system when there are no external forces acting on the system.