AIC SS 1 Biology 3rd C.A 2nd Term
  • 1. Which of the following is an example of a beneficial microorganism?
A) Bacteria causing pneumonia
B) Fungi causing athlete's foot
C) Virus causing the flu
D) Bacteria aiding in digestion
  • 2. Autotrophs are organisms that:
A) Produce their own food
B) None of the above
C) Break down dead organic matter
D) Depend on other organisms for food
  • 3. Which of the following is an example of a vector?
A) Bacteria causing food poisoning
B) Fungi causing athlete's foot
C) Virus causing the common cold
D) Mosquito transmitting malaria
  • 4. Which of the following is NOT a role of the Red Cross Society?
A) Conducting medical research
B) Promoting health education
C) Providing humanitarian aid during disasters
D) Blood donation and transfusion services
  • 5. Decomposers play a crucial role in ecosystems by:
A) None of the above
B) Providing food for other organisms
C) Producing oxygen through photosynthesis
D) Breaking down dead organic matter
  • 6. In the laboratory, turbidity can be measured with a ..............
A) Turbidometer
B) Geiger muller counter
C) Speedometry
D) Spectrophotometer
  • 7. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Pathogens
B) Antigens
C) Antibodies
D) Vectors
  • 8. What are some problems associated with conservation?
A) Lack of public awareness and participation
B) Increased pollution levels in protected areas.
C) Excessive funding and resources allocated to conservation efforts
D) Extinction of species due to overprotection
  • 9. What is adaptation in living organisms?
A) The adjustment of organisms to their environmental conditions.
B) The interdependence of organisms within an ecosystem.
C) The process of evolution through natural selection.
D) The ability of organisms to change their habitat
  • 10. Which of the following structural adaptations is characteristic of fish?
A) Strong jaws for hunting.
B) Gills for respiration
C) Scales for protection
D) Wings for flight
  • 11. What are the sources, causes, and effects of air pollution?
A) Sources: Oil spills; Causes: Industrial waste; Effects: Water contamination.
B) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
C) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
D) Sources: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
  • 12. What measures can be taken to control soil pollution?
A) Implementing sustainable farming practices.
B) Increasing the use of chemical fertilizers.
C) Encouraging deforestation for urban development.
D) Disposing of hazardous waste in landfills.
  • 13. How do unicellular organisms and invertebrates reproduce?
A) Through both sexual and asexual reproduction.
B) They do not reproduce.
C) Through sexual reproduction only.
D) Through asexual reproduction only.
  • 14. Which type of reproduction occurs in amoeba?
A) Sexual reproduction.
B) Multiple fission.
C) Asexual reproduction
D) Binary fission
  • 15. Which of the following are examples of renewable resources that need to be conserved?
A) Landfills and waste dumps.
B) Plastic and synthetic materials.
C) Water and air.
D) Fossil fuels and minerals
  • 16. How can we ensure conservation of natural resources?
A) By relying solely on technological advancements to replace resources.
B) By ignoring the impact of human activities on the environment.
C) By overexploiting resources to meet increasing demands
D) By using resources efficiently and promoting sustainable practices.
  • 17. What is a structural adaptation seen in tadpoles?
A) Webbed feet for swimming
B) Gills for respiration
C) Lungs for breathing in water
D) Legs for hopping on land.
  • 18. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Baermann funnel
B) Hydrophotometer
C) Secchi disc
D) Pooter
  • 19. ............ Is used to measure pressure.
A) Photometer
B) Barometer
C) Hygrometer
D) Colorimeter
  • 20. The diagrammatic representation of the food chain in which producers form the base and the carnivores form the apex is called ...........
A) Pyramid of energy
B) Pyramid
C) Dome
D) Pyramid of number
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