Conservation for the future.

Welcome to my blog walking through the seasons,over the coming months i will be blogging about many different aspects of wildlife, so i hope you all enjoy looking at my blog.































































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Wednesday 14 December 2011

What are lichens?

In my next set of blogs i am going to be talking about lichens and the air quality that surrounds them.

Lichens are made up of two or more different organisms living together, a fungus and an alga. The fungus provides the body (thallus) in which the algal partner can live, protected from damaging conditions such as high levels of light (ultraviolet radiation) and lack of water (drought). The algal partner provides the essential carbohydrates (food for the fungus) from carbon dioxide and water, with the aid of sunlight. This close, interdependent relationship is referred to as a symbiosis.

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