Prepare a debate on the topic life without microorganisms...
Pls give at least 5 points in fever and against
Answers
Or would it?
How many times have we started proposals, manuscripts, or presentations with compelling statements about the critical roles that microorganisms play in sustaining life? How often has the possibility of a world without microbes been explored in our introductory microbiology classes? Within the human microbiome research community, entire fields explore the interdependence of humans and their microbial counterparts.
But what would happen in a world without microbes?
In order to promote discussion about the value of microbial services supporting life on this planet, we explore the opportunities and challenges of a microbe-free existence. Our discussion begins by considering life without the human gut microbiome, follows with a hypothetical scenario of a world without Bacteria and Archaea, and concludes with the implications of a world without all microbes, including microbial eukaryotes and viruses. We do not include the organelles, such as mitochondria and chloroplasts, as microbes in our discussion, simply because most eukaryotic life would cease instantly in their absence.
We argue that despite myriad fundamental roles that microorganisms contribute to human and environmental function, it would be false to claim that macroscopic life cannot exist without microbes. However, although life would persist in the absence of microbes, both the quantity and quality of life would be reduced drastically.
Answer:
We'd all be dead. Microbes fix the majority of nitrogen in the atmosphere to forms that are usable by other organisms. Microbes cycle carbon and oxygen in organic matter. Microbes allow us to digest more of the nutrients in our foods and protect us from infections. If microbe also refers to protists then the vast majority of all ocean life will be gone, phytoplankton and zooplankton are predominantly diatoms and bacteria.
Without all of this, all life on earth would eventually collapse. Ocean life would probably die first, almost all of the energy cycling in the oceans comes from photosynthetic phytoplankton and without that everything else would quickly starve. The biomass of ocean systems is an inverted pyramid and if the large organisms get nothing to eat then they will very quickly die off. On land it would be less apparent, plants rely on rhizobia to fix nitrogen, facilitate germination, and a variety of other functions. Animals will have less effective digestion and certain species will completely starve. Most grass eaters rely on microbes in their guts to actually digest any of the matter that they consume. But gradually as the nitrogen cycle grinds to a halt plants will develop yellow streaks and die, animals will struggle to feed themselves, and the flow of energy from the sun to life will cease and basically everything will die, eventually. Certain fungi can fix nitrogen and can survive off of organic matter, of which there will be plenty, so they'll probably survive.
To go any further would put this answer into the realm of complete speculation.
Explanation: