Diseases Cause and Control Short Answer Biology Class-9 ICSE Selina Publishers Solutions Chapter-16. Step By Step ICSE Selina Concise Solutions of Chapter-16 Diseases Cause and Control with Exercise-16 including MCQs, Very Short Answer Type, Short Answer Type, Long Answer Type and Structured/Application Questions Solved . Visit official Website CISCE for detail information about ICSE Board Class-9.
Diseases Cause and Control Exe-16 Short Answer Biology Class-9 ICSE Concise Selina Publishers
| Board | ICSE |
| Publications | Selina Publication |
| Subject | Biology |
| Class | 9th |
| Chapter-16 | Diseases Cause and Control |
| Book Name | Concise |
| Topics | Solution of C. Short Answer Type |
| Academic Session | 2023-2024 |
C. Short Answer Type
Diseases Cause and Control Class-9 Biology Concise Solutions
Page 176
Question 1.
Define:
(a) Infection
(b) Pathogen
(c) Incubation
(d) Disease
(e) Vaccine
Answer:
(a) Infection: The transmission of diseases from one person to another is called infection.
(b) Pathogen: A pathogen is a disease-causing micro-organism.
(c) Incubation: Incubation period is the period between the entry of germs and appearance of the first symptoms of the disease. All infectious diseases have a certain incubation period.
(d) Disease: Disease is a departure from normal health through structural or functional disorder of the body.
(e) Vaccine: Vaccine is a biological formulation that consist of dead or weakened disease causing organism that provides active acquired immunity to a particular infectious disease.
Question 2.
Write the scientific names of the causative organisms for the following, diseases :
(a) Cholera
(b) Typhoid
(c) Tuberculosis
(d) Taeniasis
(e) Filariasis
Answer:
(a) Vibrio Cholerae
(b) Salmonella typhi
(c) Mycobacterium tuberculosis
(d) Taenia solium
(e) Wuchereria bancrofti
Question 3.
Name the causative germ of AIDS. How is this disease transmitted?
Answer:
Causative germ of AIDS:
HIV (Human immunodeficiency virus)
Transmission of AIDS:
(a) Sexual intercourse
(b) Mother to child transmission
(c) Contaminated blood transfusions
— : End of Diseases Cause and Control C. Short Answer Class-9 ICSE Biology Solutions :–
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