Question

A 1min speech on the topic world of microorganisms

Answer 1

Answer:

Explanation:

Microscopic organisms, commonly known as microorganisms or microbes, are found all around us and even inside our bodies. The category ‘Microbes’ includes a massive range of organisms including bacteria, fungi, viruses, algae, archaea and protozoa. Some of these, such as bacteria and fungi, are well known, but others such as archaea much less so.

Microorganisms, as their name implies, are so small that they usually require a microscope to see.

The vast majority of microbes on the earth pose no real threat to humans, plants or animals; in fact they actually work alongside humans to make world go round, aiding decomposition, decay and even helping us to digest our food. However, there are some microorganisms which negatively impact our lives, causing illness, bad odours and damaging products and surfaces. Some of the names we regularly hear in the media are Salmonella, E.Coli, MRSA, Malaria and Bird flu.

Microorganism are of 4 types ;

1. BACTERIA

2. FUNGI

3. ALGAE

4. VIRUSES

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Answer 2

Answer:microorganism or microbe is an organism which is microscopic, which means so small that people cannot see them with naked eye. The study of microorganisms is called microbiology.

Microorganisms include bacteria, fungi, archaea, protists and viruses, and are among the earliest known life forms. The first of these four types of microorganisms may either be free-living or parasitic. Viruses can only be parasitic, since they always reproduce inside other living things.[1][2][3]

Most micro-organisms are unicellular organism with only one cell, but there are unicellular protists that are visible to the human eye, and some multicellular species are microscopic.

Microorganisms live almost everywhere on earth where there is liquid water, including hot springs on the ocean floor and deep inside rocks within the earth's crust. Such habitats are lived in by extremophiles.

Microorganisms are critical to nutrient recycling in ecosystems, because they act as decomposers. Because some microorganisms can also take nitrogen out of the air, they are an important part of the nitrogen cycle. Pathogenic, or harmful, microbes can invade other organisms and cause disease.

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