0
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.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
Differentiate open system to closed system in the ecosystem?
A closed system maintains itself on a limited amount of resources that are entrenched in that particular system. Energy can be exchanged with other systems, but not any actual matter. Therefore, some of what goes on in the environment is considered a closed system, but not a whole lot. Open systems are much more common. In an open system, necessary resources are renewed and exchanged on a regular basis. Many ecosystems, for example, rely on the sun to constantly import energy into their basic cycles. Then there's a limited amount of nutrients to go around -- such as carbon, nitrogen and phosphorous -- and they're constantly cycled around. Some common cycles include the hydrological cycle, rock cycle and the carbon cycle. http://curiosity.discovery.com/question/difference-closed-open-system
What type of circulatory system do spiders have?
squids have closed closed circulatory systems
Why does an earthworm have an open or closed circulatory system?
Earthworms have a closed circulatory system. Blood is pumped throughout its body by ringed blood vessels. An open circulatory system is not contained in vessels. In a closed circulatory system oxygen is carried in blood! hope this helps=)
Open circulatory system to lymphatics to closed circulatory system is to blood circulatory system?
no
Do rabbits have an open or closed circulatory system?
closed. Open circulatory systems are common in athropods, such as scorpions and insects, but not of mammals. They are when the body lacks blood vessels but has blood throughout the entire cavity of the body. Mammals have closed circulatory systems, as they contain blood vessels.
Is the water cycle open or closed system?
Closed System
Is the phosphorus cycle open or closed?
Closed cycle
Is a washing machine set on a twelve minute wash cycle an open or closed loop system?
typically open
Differentiate open system to closed system in the ecosystem?
A closed system maintains itself on a limited amount of resources that are entrenched in that particular system. Energy can be exchanged with other systems, but not any actual matter. Therefore, some of what goes on in the environment is considered a closed system, but not a whole lot. Open systems are much more common. In an open system, necessary resources are renewed and exchanged on a regular basis. Many ecosystems, for example, rely on the sun to constantly import energy into their basic cycles. Then there's a limited amount of nutrients to go around -- such as carbon, nitrogen and phosphorous -- and they're constantly cycled around. Some common cycles include the hydrological cycle, rock cycle and the carbon cycle. http://curiosity.discovery.com/question/difference-closed-open-system
Is a burning candle an example of an open system or a closed system?
The light bulb is a closed system: no mass transfer.
What is open and closed cycle gas turbine?
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.
Is a Acid Rainfall open system or closed system?
Closed System
Is a can of soft drink a closed system or open system?
closed.
Is burning a candle a open or closed system?
closed system
Would a controlled designed closed or opened loop system enables better control of the system?
Open loop (single cycle) involves a break requiring a restart, easily adapted to closed loop.
Should radiator be analyzed as closed system or open system?
closed system
Do amphibians have an open circulatory system or a closed circulatory system?
Amphibians have closed circulatory system Closed
