AP BIOLOGY

Detailed explanation-1: -Some species of lichens are regarded with the conversion of rocks into the soil, helps in the formation of soil, improving the quality of the soil and also by enriching the soil required for the plants’ growth. Lichens also plays an important role in the nitrogen cycle by fixing nitrogen from the atmosphere.

Detailed explanation-2: -Because lichens enable algae to live all over the world in many different climates, they also provide a means to convert carbon dioxide in the atmosphere through photosynthesis into oxygen, which we all need to survive.

Detailed explanation-3: -Primary Succession When lichens die, they decompose, adding small amounts of organic matter to the rock to make soil.

Detailed explanation-4: -Lichens are important as early stage primary succession organisms. They anchor themselves into rock with their rhizines, which are root-like protrusions. Once rock breaks down and other organisms take root, the rhizines also prevent soil erosion.

Detailed explanation-5: -As generations of the mosses or lichens die, their remains decompose and are added to the soil. The soil is then able to support a greater variety of plant life.