Which one of the following illnesses is not caused by bacteria?

Which one of the following is not a product of biotechnology?

Which one of the following statements about microorganisms is correct?

Which one of the following microorganisms consists of only one cell?

Dead plants and animals in the soil are broken down into humus by the efforts of

Which one of the following is not a beneficial effect of fungi?

Baltimore system is used to classify

Spirogyra is a type of

A lichen is a composite organism consisting of

Which of these is an autotroph?