Closed System
Earth is a closed system in terms of matter, meaning that no new matter is added from outside the system. Matter can cycle within the Earth's systems (such as the water cycle or carbon cycle), but it does not enter or leave the planet.
The hydrological cycle is considered a closed system because water is continuously recycled through evaporation, condensation, precipitation, and runoff. Water enters and exits the cycle naturally, but the total amount of water on Earth remains relatively constant.
No, the water cycle is an open system. Water evaporates from oceans, lakes, and rivers and enters the atmosphere, where it forms clouds and eventually falls back to Earth as precipitation. This continuous cycle allows for the movement of water around the planet.
Closed. Except for the rare case of humans launching objects into space and meteorites striking the planet (which represent an incredibly miniscule fraction of the total carbon), the amount of carbon in the system remains at a constant mass.
Closed. It also has a water-vascular system. :)
typically open
Open. The phosphorous enters the system in mineral form (apatite is a type of rock that weathers into available mineral phosphorous) or from animal sources (guano, bone). Water will wash away phosphates which will cause a need for more. The availability of phosphate is a huge limiter in plant growth.
The light bulb is a closed system: no mass transfer.
In an open cycle gas turbine, the gases that are produced by combustion go directly into the atmosphere, though the heat produced can sometimes be reclaimed. In a closed cycle gas turbine, the gases produced are reused and are not emitted into the atmosphere.
In an open system,both energy and matter flow.In an closed system only energy flow.In an isolated system neither energy nor matter flow.
Amphibians have closed circulatory system Closed
Open loop (single cycle) involves a break requiring a restart, easily adapted to closed loop.