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lowesrmabry - ECOSYSTEMS Science Unit B Chapter 1 A system...

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ECOSYSTEMS Science Unit B Chapter 1
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A system is a group of parts that work together as a unit. OPEN SYSTEMS Most systems are  open systems.  They  take in things from  outside the system.   For example, a  terrarium takes in  energy from the sun. Why do plants need  the sun’s energy? CLOSED SYSTEMS Very few systems are  truly closed.  Most  systems receive  inputs and give off  outputs. A diver in a  submarine is in an  almost completely  closed system.
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Explain if these systems are open or closed. An aquarium a forest a sports team your family an astronaunt on the Space Shuttle an automobile
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Stability Stability comes from the word stable. The suffix  “ity” forms nouns from adjectives and means  “the condition or quality of”. Stability in systems means that over time the  changes in a system cancel each other out.  For 
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This note was uploaded on 11/22/2011 for the course EL ED 302 taught by Professor Staff during the Winter '08 term at BYU.

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lowesrmabry - ECOSYSTEMS Science Unit B Chapter 1 A system...

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