Contagion in Biology
This worksheet covers key concepts related to contagion, including types of pathogens, modes of transmission, and prevention methods, suitable for Grade 9 science students.
Includes
Standards
Topics
Contagion: Understanding Disease Transmission
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Read each question carefully and answer to the best of your ability. Use complete sentences where appropriate.
1. Which of the following is NOT a type of pathogen?
Bacteria
Viruses
Fungi
Antibiotics
2. What is the primary function of a vaccine?
To kill existing pathogens in the body
To strengthen the immune system against future infections
To prevent allergic reactions
To reduce inflammation
3. Diseases that can be transmitted from one person to another are called diseases.
4. A is an organism that carries and transmits a pathogen to another organism.
5. The process by which microorganisms cause disease is known as .
6. Handwashing is an effective method for preventing the spread of many infectious diseases.
True
False
7. All bacteria are harmful to humans.
True
False
8. Describe two different modes of disease transmission.
9. Explain the difference between an epidemic and a pandemic.
10. Observe the diagram of the virus below. Identify and label two key components of its structure.
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