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Home › Grade8 › Grade 8 CBSE › 8 CBSE Biology › Microorganisms-Friends and Foe › Microorganisms-Friends and Foe Notes

Microorganisms-Friends and Foe Notes

 

Microorganisms-Friends and Foe Notes

Topics :

- Introduction

- Types of micro-organisms

- Examples of different shaped bacteria

- Protozoa

- Algae

- Virus

- Questions

- Habitat of microorganismas

- Uses of microorganisms

- Antibiotics

- Vaccine

- Beneficial microorganisms

- Nitrogen fixation

- Nitrogen cycle

- Questions

- Harmful microorganisms

- Food preservation

- Keywords

- Questions

 

Questions

QUESTIONS

(A)   Fill in the blank:

  1. Diseases that are caused due to entry of ______ are called Infectious discuses.

Ans: (Pathogen)

  1. Diseases that can spread from one person to another are called ______ diseases.

Ans: (Communicable)

  1. Dysentery is a disease caused due to contaminated _____.

Ans: (water)

  1. Cold and cough are ______ diseases.

Ans: (Air-borne)

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