Without additional context, it is difficult to determine. Closed ecosystems are self-sustaining, with minimal exchange of matter with the external environment. Open ecosystems have exchange with the external environment.
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
Organisms in a closed ecosystem survive by recycling nutrients, such as through decomposition and nutrient cycling, and by forming complex food webs to ensure energy flow within the ecosystem. They also adapt behaviors to optimize resource utilization and maintain population balances to prevent overconsumption of resources. Additionally, these organisms may have evolved unique biological processes to thrive in the specific conditions of a closed ecosystem.
It is not possible for humans to sleep with one eye open and one eye closed simultaneously. The brain requires both eyes to be closed in order to enter the deep stages of sleep.
Stomata are generally open during the day when light is available for photosynthesis and closed at night to conserve water and prevent excessive transpiration. If the temperature is not very hot, stomata may remain open longer during the day to allow for increased gas exchange for photosynthesis.
Rabbits have a closed circulatory system, meaning that their blood flows through a series of vessels and the heart pumps it continuously around the body. This system allows for efficient transport of oxygen, nutrients, and waste products throughout the rabbit's body.
"Show" is open, "and" is closed. O- is open, -pen is closed. "Closed" is closed.
a construction site?
The opposite of the adjective closed is open. The opposite of the verb closed is opened.
Both open syllables.
Open grassland ecosystem.
Both closed syllables.
One open, one closed
One open, one closed.
Both closed.
open-closed continuum A continuum extending from an open situation to a closed situation, which describes the extent to which environmental conditions.
Photo is an open syllable word.
The second syllable is open, the first is closed.