Class 8ScienceMicroorganisms: Friend and Foe
Harmful Microorganisms (Pathogens)
Disease-causing microorganisms are called pathogens. Bacteria cause: TB, cholera, typhoid. Viruses cause: influenza, polio, COVID-19, HIV. Protozoa cause: malaria (Plasmodium via mosquito), amoebic dysentery. Fungi cause: ringworm, athlete's foot. Prevention: vaccines, antibiotics, hygiene, vector control.
10 examples
Concept check 1
For Class 8 Science, explain or solve a harmful microorganisms (pathogens) question from the chapter "Microorganisms: Friend and Foe". Focus on concept check and show the working clearly.
Definition to application 2
For Class 8 Science, explain or solve a harmful microorganisms (pathogens) question from the chapter "Microorganisms: Friend and Foe". Focus on definition to application and show the working clearly.
Formula warm-up 3
For Class 8 Science, explain or solve a harmful microorganisms (pathogens) question from the chapter "Microorganisms: Friend and Foe". Focus on formula warm-up and show the working clearly.
Reasoning practice 4
For Class 8 Science, explain or solve a harmful microorganisms (pathogens) question from the chapter "Microorganisms: Friend and Foe". Focus on reasoning practice and show the working clearly.
Board-style short answer 5
For Class 8 Science, explain or solve a harmful microorganisms (pathogens) question from the chapter "Microorganisms: Friend and Foe". Focus on board-style short answer and show the working clearly.
Mistake correction 6
For Class 8 Science, explain or solve a harmful microorganisms (pathogens) question from the chapter "Microorganisms: Friend and Foe". Focus on mistake correction and show the working clearly.
Visual interpretation 7
For Class 8 Science, explain or solve a harmful microorganisms (pathogens) question from the chapter "Microorganisms: Friend and Foe". Focus on visual interpretation and show the working clearly.
Applied word problem 8
For Class 8 Science, explain or solve a harmful microorganisms (pathogens) question from the chapter "Microorganisms: Friend and Foe". Focus on applied word problem and show the working clearly.
Revision challenge 9
For Class 8 Science, explain or solve a harmful microorganisms (pathogens) question from the chapter "Microorganisms: Friend and Foe". Focus on revision challenge and show the working clearly.
Exam recap 10
For Class 8 Science, explain or solve a harmful microorganisms (pathogens) question from the chapter "Microorganisms: Friend and Foe". Focus on exam recap and show the working clearly.