Question

what are
1. lichens
2. mycorrhiza
3. bacteriophage? Also, give there types (if any)

Answer 1

1.Lichens are a complex life form that is a symbiotic partnership of two separate organisms, a fungus and an alga. The dominant partner is the fungus, which gives the lichen the majority of its characteristics, from its thallus shape to its fruiting bodies. The alga can be either a green alga or a blue-green alga, otherwise known as cyanobacteria. Many lichens will have both types of algae.litmus paper is obtained from these

2.Myco” – “rhiza” literally means “fungus” – “root” and describes the mutually beneficial relationship between the plant and root fungus (mycorrhizae is the plural form of mycorrhiza). These specialized fungi colonize plant roots and extend far into the soil. Mycorrhizal fungal filaments in the soil are truly extensions of root systems and are more effective in nutrient and water absorption than the roots themselves. Approximately 95 percent of plant species on the planet form a symbiotic relationship with the beneficial mycorrhizal fungi.

3.Bacteriophage, also called phage or bacterial virus, any of a group of viruses that infect bacteria. Bacteriophages were discovered independently by Frederick W. Twort in Great Britain (1915) and Félix d’Hérelle in France (1917). D’Hérelle coined the term bacteriophage, meaning “bacteria eater,” to describe the agent’s bacteriocidal ability. Bacteriophages also infect the single-celled prokaryotic organisms known as archaea.

I can't tell you it's types as
It is estimated there are more than 1031 bacteriophages on the planet, more than every other organism on Earth, including bacteria, combined.

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Answer 2

1) a very small grey plant that spreads over the surface of wall or rock & trees doesn't have any flowers
2. a fungus which grows in association with the roots of a plant in a symbiotic relationship.
3. bacteriophagus are ubiquitous virus found where bacteria exit.