Understanding Diseases
A worksheet covering various aspects of diseases, including types, transmission, and prevention, suitable for Grade 9 science students.
Includes
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Topics
Understanding Diseases
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Date:
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which of the following is NOT a type of pathogen?
Bacteria
Viruses
Fungi
Allergens
2. How are airborne diseases primarily transmitted?
Through contaminated food
Through direct contact with infected individuals
Through droplets in the air from sneezing or coughing
Through insect bites
3. A substance that stimulates the immune system to produce antibodies against a disease is called a .
4. The body's ability to resist a particular infection or toxin by the action of specific antibodies or sensitized white blood cells is known as .
5. Briefly explain the difference between a communicable and a non-communicable disease.
6. Antibiotics are effective against viral infections.
True
False
7. Observe the diagram below, identify the type of pathogen, and describe one characteristic.
Use the words below to complete the sentences.
8. A disease outbreak that affects many people in a specific region is called an .
9. A global outbreak of a disease is termed a .
10. An organism that transmits a pathogen from one host to another is a .