Distribution of organisms

The distribution of living organisms in a particular habitat may be affected by physical factors such as temperature and amount of light. Transects and quadrats are used to help collect quantitative data about organisms in their habitats. The collected data can be analysed to find the mean, median and mode values of organisms in a particular area.

These affect organism:

• temperature 
• availability of nutrients 
• amount of light
• avalability of water 
• avalability of oxygen and carbon dioxide 

Environment - All the conditions that surround a living organism

Habitat- The place where an organism lives

Population- All the members of a single species that live in a habitat

Community- All the populations of different organisms that live together in a habitat

Ecosystem- A community and the habitat in which it lives