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Questions and Answers
______ are micro-organisms which can develop only inside the cells of the host organisms.
Viruses
Viruses are ______ than bacteria.
smaller
Protozoa are classified as ______.
animals
Bacteria are larger than ______ but still very small. Unlike viruses, bacteria feed, move and respire, as well as reproduce on their own.
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There are mainly three groups of bacteria on the basis of their ______: spherical bacteria, rod-shaped bacteria and spiral bacteria.
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Some of the human diseases caused by bacteria are cholera, typhoid, tuberculosis (TB), diphtheria, whooping cough and ______ poisoning.
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Bacteria have cell walls but do not have an organised ______ and other structures
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The two common examples of bacteria are Lactobacillus bacteria and ______ bacteria
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Some of the human diseases caused by bacteria are cholera, typhoid, tuberculosis (TB), diphtheria, whooping cough and food ______
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______ are animal like just as algae are plant like.
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Diseases caused by ______ cannot be treated with antibiotics.
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Protozoa are found in ponds, lakes, dirty water drains, rivers, sea- water and ______ soil.
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