The lichen fungus can produce spores. Germinating, the spore turns into a hypha. If this hypha stumbles upon an algae cell, which can form a lichen together with this fungus, the hyphae wraps around the algae cell and new algal cells that appear after division. If the hypha does not come across the algae in time, the fungus dies. Such a chance meeting of a fungus with the algae it needs seems incredible. Thanks to what, after all, lichens multiply by fungal spores?
Spores of fungi are light and scatter over long distances, algae are everywhere in nature (unicellular) – there would be a drop of water, so the likelihood of a fungus and algae meeting is very likely, which happens quickly in nature.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.