Distribution Of Organisms

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  • Created by: Sarah
  • Created on: 21-01-13 17:24

Living organisms form communities, and we need to understand the relationships within and between these communities. These relationships are affected by external influences.

Physical factors that may affect organisms are:

■ temperature

■ availability of nutrients

■ amount of light

■ availability of water

■ availability of oxygen and carbon dioxide.

Quantitative data on the distribution of organisms can be obtained by:

■ random sampling with quadrats

■ sampling along a transect.


A transect is a line across a habitat…


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