Answers

2013-12-25T15:36:43+05:30
For certain animals like caribou an musk ox have lichens as their food. It also helps in weathering of rocks by releasing an acid as a part of their metabolism. When these lichens die out they decay,decompose and form soil. Lichens also release oxygen in the atmosphere.
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Soil Formation
Soil is the foundation for most ecosystems and lichens are critical in creating soil. Many lichens are considered colonizing organisms. This means they are some of the first organisms that can live in an ecosystem that is either new or starting over. They can live on rocks and, as they grow, the acids they secrete break down the rocks. This makes a significant contribution in the formation of soil. Once soil is formed, other organisms are able to live in the area and the ecos
Habitat for Other Organisms
Lichens provide important habitat for many other organisms. They are an excellent home for insects, arthropods, and other small invertebrates. Lichens are also used by organisms to help build and insulate their homes. Birds, for example, use various species of lichens (especially the fruticose types) to build their nests. Lichens are absorbent, flexible and soft and are therefore great additions to borrows and other small animal homes. Lichens also provide excell
lent home for insects, arthropods, and other small invertebrates. Lichens are also used by organisms to help build and insulate their homes. Birds, for example, use various species of lichens (especially the fruticose types) to build their nests. Lichens are absorbent, flexible and soft and are therefore great additions to borrows and other small animal homes. Lichens also provide excellent camouflage for small insects and other invertebrates.