Q83 of 104 Page 41

Which of the following disease is not caused by bacteria?

Cholera, typhoid and tuberculosis are caused by bacteria whereas measles is caused by a virus.

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81

Which of the following is not a communicable disease?

(A) Lactobacillus bacteria


(B) Rhizobium bacteria


(C) Spirogyra algae


(D) Blue-green algae

 82

Which of the following cannot be used as a food preservative?

 84

The micro-organisms which can reproduce and multiply only cells of other organisms are:

 85

The dengue disease spread by Aedes mosquito is caused by: