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