Question

what is a bacteria? how many types of virus.​

Answer 1

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Bacteria are single-celled microorganisms, also known as prokaryotes. Experts estimate that there are at least 1 nonillion bacteria on Earth. A nonillion is a 1 followed by 30 zeros.

Bacteria are the plural of bacterium, which are microscopic one-celled organisms. They are found everywhere and can be harmful, as in infections; or they can be beneficial, as in fermentation or decomposition. Five types of bacteria are: Coccus, Bacillus, Spirillum, Rickettsia, and Mycoplasma.

Bacteria are classified into five groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). They can exist as single cells, in pairs, chains or clusters.

There are viruses that infect all types of cells: animal cells, plant cells, and unicellular organisms. Those that infect bacteria are called bacteriophage or just phage ( phage means "to eat"). Bacteriophage exist as inert particles when they are outside of bacterial cells.

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Answer 2

☘WHAT IS BACTERIA?

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▪︎Bacteria are also called germs.

▪︎They are microscopic organisms not visible with the naked eye.

▪︎Bacteria are everywhere, both inside and outside of your body.

▪︎Bacteria can live in a variety of environments, from hot water to ice.

▪︎Some bacteria are good for you, while others can make you sick.

☘HOW MANY TYPES OF VIRUS ARE THERE ?

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▪︎There are more viruses than stars in the universe.