AIC SS 1 Biology 3rd C.A 2nd Term
  • 1. Which of the following is an example of a beneficial microorganism?
A) Fungi causing athlete's foot
B) Bacteria causing pneumonia
C) Virus causing the flu
D) Bacteria aiding in digestion
  • 2. Autotrophs are organisms that:
A) Break down dead organic matter
B) Produce their own food
C) Depend on other organisms for food
D) None of the above
  • 3. Which of the following is an example of a vector?
A) Fungi causing athlete's foot
B) Mosquito transmitting malaria
C) Bacteria causing food poisoning
D) Virus causing the common cold
  • 4. Which of the following is NOT a role of the Red Cross Society?
A) Promoting health education
B) Providing humanitarian aid during disasters
C) Blood donation and transfusion services
D) Conducting medical research
  • 5. Decomposers play a crucial role in ecosystems by:
A) Breaking down dead organic matter
B) Providing food for other organisms
C) None of the above
D) Producing oxygen through photosynthesis
  • 6. In the laboratory, turbidity can be measured with a ..............
A) Turbidometer
B) Speedometry
C) Spectrophotometer
D) Geiger muller counter
  • 7. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Vectors
B) Pathogens
C) Antigens
D) Antibodies
  • 8. What are some problems associated with conservation?
A) Extinction of species due to overprotection
B) Excessive funding and resources allocated to conservation efforts
C) Lack of public awareness and participation
D) Increased pollution levels in protected areas.
  • 9. What is adaptation in living organisms?
A) The process of evolution through natural selection.
B) The ability of organisms to change their habitat
C) The adjustment of organisms to their environmental conditions.
D) The interdependence of organisms within an ecosystem.
  • 10. Which of the following structural adaptations is characteristic of fish?
A) Scales for protection
B) Strong jaws for hunting.
C) Gills for respiration
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) Increasing the use of chemical fertilizers.
B) Disposing of hazardous waste in landfills.
C) Encouraging deforestation for urban development.
D) Implementing sustainable farming practices.
  • 13. How do unicellular organisms and invertebrates reproduce?
A) Through asexual reproduction only.
B) Through sexual 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) Multiple fission.
C) Sexual reproduction.
D) Binary fission
  • 15. Which of the following are examples of renewable resources that need to be conserved?
A) Fossil fuels and minerals
B) Water and air.
C) Plastic and synthetic materials.
D) Landfills and waste dumps.
  • 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) Lungs for breathing in water
B) Gills for respiration
C) Legs for hopping on land.
D) Webbed feet for swimming
  • 18. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Secchi disc
B) Pooter
C) Baermann funnel
D) Hydrophotometer
  • 19. ............ Is used to measure pressure.
A) Colorimeter
B) Barometer
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 of energy
B) Pyramid
C) Pyramid of number
D) Dome
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