Question

write beneficial microorganism and harmful organism​

Answer 1

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beneficial microorganism

⟹ Beneficial microorganisms include those that create symbiotic associations with plant roots (rhizobia, mycorrhizal fungi, actinomycetes, diazotrophic bacteria), promote nutrient mineralization and availability, produce plant growth hormones, and are antagonists of plant pests, parasites or diseases (biocontrol agents).

harmful organism

⟹ Harmful microorganisms include fungi, bacteria, protozoa, etc. They cause several diseases in human beings, animals, and plants which can even lead to death. ... Such disease-causing microorganisms are called pathogens. Some of the common diseases affecting humans are cholera, common cold, chicken pox and tuberculosis.

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Answer 2

Explanation:

Benefits:

Bacteria and fungi are required to maintain a healthy environment. Not only do they recycle natural wastes and dead animal and plant matter, they also produce many of the nutrients that plants need to grow. Bacteria, in particular, are the only living things that can fix nitrogen for use in plants. At the same time, microorganisms work in tandem with certain plants to aid them. Some viruses have been found to provide heat resistance to grasses in arid locations, and many plants store bacteria in their roots to help absorb certain nutrients more easily.

Harm:

Microscopic organisms, usually known as microorganisms or microbes, are discovered all around us and also inside human bodies. 'Microorganisms' are present in living organisms like parasites, infections, algae, bacteria, and protozoa. Some of the microorganisms like bacteria and fungi are commonly known but others like archaea are not well known.

Some microorganisms like bacteria, are parasitic and can have a negative effect on plants, humans or animals by attacking the very cells that contain more complex living organism. They prey and feed on other beneficial microorganisms and bacteria in the form of a disease that the plant or body must fight off through their immune system.