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Chapters
2: Cell : The Unit of Life
3: Tissues : Plant and Animal Tissues
4: The Flower
5: Pollination and Fertilization
6: Seeds - Structure and Germination
7: Respiration in Plants
8: Five Kingdom Classification
9: Economic Importance of Bacteria and Fungi
10: Nutrition
11: Digestive System
12: Skeleton - Movement and Locomotion
13: Skin - "The Jack of all Trades"
14: The Respiratory System
▶ 15: Hygiene - [A Key to Healthy Life]
16: Diseases : Cause and Control
17: Aids to Health
18: Health Organisation
19: Waste Generation and Management
![Selina solutions for Concise Biology [English] Class 9 ICSE chapter 15 - Hygiene - [A Key to Healthy Life] - Shaalaa.com](/images/4567167791-concise-biology-english-class-9-icse_6:778c9d06bf3248a296d8ab25ff5c174b.jpg "Selina solutions for Concise Biology [English] Class 9 ICSE chapter 15 - Hygiene - [A Key to Healthy Life]")
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Solutions for Chapter 15: Hygiene - [A Key to Healthy Life]
Below listed, you can find solutions for Chapter 15 of CISCE Selina for Concise Biology [English] Class 9 ICSE.
Selina solutions for Concise Biology [English] Class 9 ICSE 15 Hygiene - [A Key to Healthy Life] Multiple choice type [Page 155]
No urination due to shortage of water in the body is a typical symptom of
typhoid
malaria
dysentery
cholera
Which one of the following is an unhealthy habit?
Removing wax from inside the ears
Keeping the mouth closed while breathing
Sleeping for only 6-7 hours
Sharing towels with others
The protozoan that causes malaria is:
Entamoeba histolytica
Euglena
Paramecium
Plasmodium
The chemical substance mainly responsible for tooth disorders is
Calcium
Chloride
Fluorides
Iodides
Typhoid is caused by
Housefly
Bacteria
Virus
None of the above
The germ causing Hepatitis is transmitted through
the bite of a mosquito
contamination of food by a housefly
personal contact with a patient
contaminated water
Selina solutions for Concise Biology [English] Class 9 ICSE 15 Hygiene - [A Key to Healthy Life] Very short answer type [Page 155]
Match Column I with that Which is Most Appropriate in Column II.
| Column I | Column II |
| (a) Mosquito | (i) DDT |
| (b) Plasmodium | (ii) Dengue |
| (c) Entamoeba histolytica | (iii) Vector |
| (d) Aedes mosquito | (iv) Malaria |
| (e) Insecticide | (v) Dysentery |
Name the following:
Organisms that transmit microbes that cause disease.
Name the following:
Organisms that cause disease.
Name the following:
Science of maintaining good health.
Describe the different ways by which the housefly contaminates our food.
Suggest any two methods of controlling flies.
List any three effective methods for controlling mosquitoes.
Name the two common kinds of mosquitoes and the diseases they transmit.
Mention any three ways by which potable water can be contaminated.
Selina solutions for Concise Biology [English] Class 9 ICSE 15 Hygiene - [A Key to Healthy Life] Long answer type [Page 155]
Give suitable explanations for the following :
One should breathe by nose and never by mouth.
Give suitable explanations for the following :
Hands must be washed before eating food.
Give suitable explanations for the following :
Eating places must be kept free of flies.
How are cockroaches and rats harmful to humans?
Name the two types of dysentery and their causative germs and give one main precaution against them.
Mention three symptoms of the disease Hepatitis.
Solutions for 15: Hygiene - [A Key to Healthy Life]
Selina solutions for Concise Biology [English] Class 9 ICSE chapter 15 - Hygiene - [A Key to Healthy Life]
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Concepts covered in Concise Biology [English] Class 9 ICSE chapter 15 Hygiene - [A Key to Healthy Life] are Types of Hygiene: Personal Hygiene, Types of Hygiene: Public Hygiene (Community), Hygiene, Health, Vector Borne Diseases, Control of Disease Carriers (Vectors), Contamination of Water and Water Borne Diseases, Waterborne Diseases Caused by Bacteria, Waterborne Diseases Caused by Virus, Protozoan Diseases.
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