Biology and Earth Systems

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System

Back

A group of parts that work together as a whole

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Natural System

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System that occurs naturally within the environment as opposed to a human-made system.

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Boundary

Back

Surface that encloses a system

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Input

Back

Something put into a system, such as resources, in order to achieve a result.

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Output

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The product of the operation of any system.

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Cells

Back

Smallest unit of life

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Tissues

Back

Groups of cells with a common structure and function.

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Organs

Back

Groups of tissues that work together to perform a specific function or related functions

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Geosphere

Back

The solid part of the earth consisting of the crust and outer mantle

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Hydrosphere

Back

All the water at and near the surface of the earth, 97% of which is in oceans