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