Question

y. Write detailed notes on : algae, protozoa and viruses. short answer 30 to 45 word
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Answer 1

Answer:

Bacteria -

Bacteria is very simplest nd prokaryotic organism. It was discovered by Antony von leeuwnhock Robert Koch nd Louis pasture. They are present in water, air nd land. There size is 2-10 meu. Reproduction is by fission. There cell wall is thick which is made of chitin.

Algae -

They are found in river, pond, sea, lack etc. They are unicellular or multicellular. They are autotrops due to presence of chlorophyll. Food store in form of starch.

Virus -They are non cellular, obligate parasites. They have only one kind of nucleic acid either DNA or RNA. Virus are nit affected by levels of antibiotics that cells can tolerate.

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Explanation:

Answer 2

Explanation:

1. Algae are a diverse group of aquatic organisms that have the ability to conduct photosynthesis. Certain algae are familiar to most people; for instance, seaweeds (such as kelp or phytoplankton), pond scum or the algal blooms in lakes

2. protozoa - phylum or grouping of phyla which comprises the single-celled microscopic animals, which include amoebas, flagellates, ciliates, sporozoans, and many other forms. They are now usually treated as a number of phyla belonging to the kingdom Protista.

3. Viruses -

A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea