Question

Answer these questions
1.How are carriers harmful to us?
2.What is the role of bacteria in increasing the soil fertility?
3.What is the difference between Rhizobium and cyanobacteria in the way of fixing nitrogen for the plants?

Complete the answer ..answer this if u know

Answer 1

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1. Carriers are harmful to is in many ways...

• Carriers take with them many harmful microorganisms or pathogens.
• They play a great role in transferring these pathogens to a healthy person, by sitting on the food items, or directly transferring the pathogens inside the body of a person.
• Hence they are harmful to us.

2. Bacteria have a significant role in enhancing the quality of soil as they supplement various nutrients such as nitrogen and phosphorous to the soil. Rhizobium is an example of a symbiotic bacterium that attaches to the roots of leguminous plants and it increases the soil fertility by converting atmospheric nitrogen into organic compounds. It also break down the minerals present in soil into simpler forms with the help of enzymes.

3. PLZ refer the attachment for the answer of third question

Answer 2

Answer:

1. Carriers are harmful to is in many ways.:

Carriers take with them many harmful microorganisms or pathogens.

They play a great role in transferring these pathogens to a healthy person, by sitting on the food items, or directly transferring the pathogens inside the body of a person.

Hence they are harmful to us.

2. Bacteria have a significant role in enhancing the quality of soil as they supplement various nutrients such as nitrogen and phosphorous to the soil. Rhizobium is an example of a symbiotic bacterium that attaches to the roots of leguminous plants and it increases the soil fertility by converting atmospheric nitrogen into organic compounds. It also break down the minerals present in soil into simpler forms with the help of enzymes.