Question

TIONS:
B.
1. How o microorganisms enter our body?
2. What is the mode of nutrition of bacteria?
3. Viruses are considered on the borderline of
4. Why is salt added to pickles in large
7. Explain the role of bacteria in increasing
Q.
living and non-living. Why?
amount?
5. Algae is called 'grass of water'. Give
6. Why should antibiotics always be taken
under medical supervision?
C.
reason.
soil fertility.​

Answer 1

Answer:

Q4. salt is added to pickles in large amount to prevent them from rancidity or from microbes

Q1 microorganisms enter our body through water, air , physical contact and through various agents

Q2 . bacteria's are both autotropic and heterotrophic