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There are open circulatory systems and there are closed circulatory systems. In the open systems found in insects and invertebrates the fluid which carries the blood does not remain within any vessels but rather it bathes the cells of the organs thus transfering the nutrients. In a closed system the blood remains within blood vessels like in the case with humans and the nutrients are diffused out of these vessels to the cells of the organs.
A sprinkler system consists of a grid of pipelines located on the ceiling of the room, with sprinkler heads attached to the pipes by threaded connections. The opening of a sprinkler is kept closed by a disk held in a closed position by a thermal lock. If the room temperature rises to a specified point, the lock is destroyed and the disk opens, admitting water to the room. Drencher systems, which use nozzles without thermal locks, are actuated either by a sprinkler installed in a trigger air line or by a cable-type thermal lock. Automatic fire protection systems are classified according to the time elapsed between the start of the fire and the actuation of the system as ultrahigh-speed (to 0.1 sec), high-speed (to 3 sec), and standard (to 180 sec). The fire-extinguishing substance can be applied for periods ranging from 30 sec to 60 min.
Closed-cell foam insulation differs from open cell foam insulation in the fact that closed-cell foam insulation has tiny foams cells that are closed and packed together. They are filled with gas that helps the foam rise. Open cell foam does not have this characteristic.
A system is said to be closed when it doesn't interact with the outside world. This is a theoretical idea; in real systems, it is impossible to entirely eliminate contact with other parts of the Universe.
Open systems are systems where items are free to enter and exit as they please such as Earth and the universe. Closed systems are contained such as that of a plant organism.
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Systems can be classified as open, closed, or isolated. Open systems exchange both matter and energy with their surroundings, closed systems only exchange energy, and isolated systems exchange neither. These classifications are based on the extent of interaction between the system and its environment.
both can breathe with there mouths closed
In a closed system, no matter can enter or leave the system, while in an open system matter can enter or leave the system. This means that closed systems are isolated from their surroundings, while open systems can exchange matter with their surroundings. Chemical reactions that occur in closed systems can potentially reach equilibrium, while those in open systems may continue until one or more reactants are depleted.
Closed systems do not exchange matter with their surroundings.
The types of geomorphic systems are open and closed geomorphic systems.
Some dont have any at all but most have closed cirrculatory systems.
A closed mortgage has restrictions on prepayment and renegotiation, while an open mortgage allows for more flexibility in paying off the loan early without penalties.
closed circuit television
No. A circle, for example, is a closed shape but it is not a polygon.
In physics, open systems allow energy and matter to flow in and out, while closed systems do not allow matter to enter or leave but allow energy to flow. Open systems can exchange both energy and matter with their surroundings, while closed systems can only exchange energy. This impacts the flow of energy and matter within a system by determining whether it can interact with its environment and receive inputs or outputs.