Models & Systems

A system is defined as an assemblage of parts and the relationships between them that enable them to work together to form a functioning whole.

• True

• False

An _______________ exchanges both matter and energy whitin its surroundings across the boundaries of the system.

• open system

• closed system

• isolated system

A ___________ exchanges energy but no matter across the boundaries of the system.

• open system

• closed system

• isolated system

An __________ exchanges neither energy nor matter with its environment.

• open system

• closed system

• isolated system

The Biosphere 2 was a model of a closed system.

• True

• False

Choose one example of an open system:

• 
• 
• 

Systems may be living or non-living, large or small.

• True

• False

A ___________ is a diagram that uses different symbols (boxes and arrows) to represent each part of the system.

• model

• system

• representation

• drawing

Energy and matter are the inputs and outputs that flow through ecosystems, but they are also stored within the system as storage.

• True

• False

In an ecosystem, the energy input is ______________, which is transformed into chemical energy in the bonds of glucose formed during photosynthesis.

• water

• carbon dioxide

• sunlight

• nitrogen