During the formation of bread, it becomes porous due to the release of CO₂ by the action of:

If all ponds and puddles are destroyed, the organisms likely to be destroyed is:

Tobacco mosaic virus is a tubular filament of size:

A non-photosynthetic aerobic nitrogen fixing soil bacterium is:

Which of the following is a slime mold?

'Origin of species' was written by:

Which is the sex factor in bacteria?

Bacterium, with flagella all over its body is called:

Nitrogen fixing soil organisms belong to:

Temperature tolerance of thermophile blue green algae is due to: