Are refrigerators a closed system?

Answer A closed system is a system in which energy is not gained or lost, but is recycled within a closed environment. A refrigerator is an example of a closed system, since the gases and energy are repea... Read More »

Top Q&A For: Are refrigerators a closed system

How to Winterize a Closed System in a Mercruiser?

Properly winterizing your boat's engine at the end of each season makes for a more reliable, longer-lived boat. Many popular Mercruiser sterndrive and inboard engines use a closed cooling system th... Read More »

Do earthworms have a closed circulatory system?

Earthworms have what is known as a closed circulatory system. Earthworms do not have cells. Their blood is pumped through five vessels from the dorsal vessel into the frontal vessel.Source:Circulat... Read More »

Are Haier refrigerators better than LG refrigerators?

On One Hand: Haier is an Up and ComerThe Haier brand, which started as a Chinese company in the 1920s, has been making compact refrigerators for years, and has been making full-size models for the ... Read More »

Does a flatworm have an open or closed circulatory system?

Flatworms have neither an open circulatory system, in which blood is pumped into body cavities, nor a closed one. Because of their small size and shape, they do not require any circulatory system. ... Read More »