Name any two free-living bacteria....

Name any two free-living bacteria.

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**Step-by-Step Solution:** 1. **Understanding Bacteria**: Bacteria are prokaryotic organisms, meaning they do not have a nucleus or membrane-bound organelles. They belong to the Monera kingdom. 2. **Types of Bacteria**: Bacteria can be classified into two categories: symbiotic and free-living. Symbiotic bacteria form associations with other organisms, while free-living bacteria do not. 3. **Identifying Free-Living Bacteria**: We need to name two examples of free-living bacteria. Free-living bacteria are those that exist independently and do not rely on other organisms for survival. ...

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Assertion :- Both Rhizobium and Frankia are free living bacteria. Reason:- Both of bacteria fix nitrogen only in symbiotic manner.

If both assertion and reason are true and reason is the correct explanation of assertion.

If both assertion and reason are true but reason is not the correct explanation of assertion.

If assertion is true but reason is false.

If both assertion and reason are false.

The amount of nitrogen fixed by free-living bacteria per hectere is

10-25 kg

50-75 kg

5-10 kg

10-30 kg

An aerobic saprotrophic nitrogen-fixing free-living bacteria is

Azospirillum

Azotobacter

Chromatium

Clostridium