Sunday, 5 January 2020

CBSE Class 9 - Biology - Why Do We Fall Ill? - Worksheet (#class9Biology)(#eduvictors)

Class 9 - Biology - Why Do We Fall Ill?

Worksheet 

CBSE Class 9 - Biology - Why Do We Fall Ill?  - Worksheet (#class9Biology)(#eduvictors)



Fill in the banks with suitable word(s)

1. Pathogens causing diseases like common cold, influenza, dengue fever, AIDS are ________.

2. Pathogens causing diseases like typhoid, cholera, antrax, tuberculosis are _________.

3. Pathogens causing diseases like skin infections are __________.

4. Pathogens causing diseases like malaria, kala-azar are _________.



5. Health is a state of well being _________, ___________ and socially.

6.  Disease lasting for a short period of time is known as ________ disease.

7.  Disease lasting for a long time, even as much as a lifetime is called _______ disease.

8. __________ of disease is more desirable than its successful treatment.

9. The severity of disease manifestations depend on the number of _________ in the body.

10. ________ of diseases are the indications that we feel as being wrong or universal, such as hold, headache, loose motion etc.

11. The  diseases   which  spread  due  to infection by micro-organisms are called _________ diseases.

12. The diseases  present since birth, caused due to genetic abnormalities or defective development of embryo.e.g. haemophilic are called ________ diseases.

13. AIDS acronym stands for  __________________________________________.

14. Full form of WHO is ______________________________.

15. Small pox is prevented through _____________.

16. __________ is an anti-microbial agent made from microorganisms and can kill and inhibit the growth of pathogens.

17. Cholera is a  _______ borne disease while pneumonia is _______ borne disease.



Answer:
1. Virus or Virii
2. bacteria
3. fungi
4. protozoans
5. physically, mentally
6. acute
7. chronic
8. Prevention
9. microbes/ pathogens
10. Symptoms
11. infectious
12. congenital
13. Acquired Immuno Deficiency Syndrome
14. World Health Organisation.
15. vaccination
16. Antibiotic
17. water, air

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