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 aiding in digestion
C) Bacteria causing pneumonia
D) Virus causing the flu
  • 2. Autotrophs are organisms that:
A) None of the above
B) Produce their own food
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) Virus causing the common cold
B) Mosquito transmitting malaria
C) Bacteria causing food poisoning
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) Providing humanitarian aid during disasters
C) Conducting medical research
D) Blood donation and transfusion services
  • 5. Decomposers play a crucial role in ecosystems by:
A) None of the above
B) Producing oxygen through photosynthesis
C) Providing food for other organisms
D) Breaking down dead organic matter
  • 6. In the laboratory, turbidity can be measured with a ..............
A) Spectrophotometer
B) Turbidometer
C) Speedometry
D) Geiger muller counter
  • 7. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antigens
B) Pathogens
C) Antibodies
D) Vectors
  • 8. What are some problems associated with conservation?
A) Extinction of species due to overprotection
B) Increased pollution levels in protected areas.
C) Lack of public awareness and participation
D) Excessive funding and resources allocated to conservation efforts
  • 9. What is adaptation in living organisms?
A) The interdependence of organisms within an ecosystem.
B) The ability of organisms to change their habitat
C) The adjustment of organisms to their environmental conditions.
D) The process of evolution through natural selection.
  • 10. Which of the following structural adaptations is characteristic of fish?
A) Strong jaws for hunting.
B) Scales for protection
C) Wings for flight
D) Gills for respiration
  • 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) Encouraging deforestation for urban development.
C) Disposing of hazardous waste in landfills.
D) Increasing the use of chemical fertilizers.
  • 13. How do unicellular organisms and invertebrates reproduce?
A) They do not reproduce.
B) Through both sexual and asexual reproduction.
C) Through asexual reproduction only.
D) Through sexual reproduction only.
  • 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) Water and air.
B) Fossil fuels and minerals
C) Plastic and synthetic materials.
D) Landfills and waste dumps.
  • 16. How can we ensure conservation of natural resources?
A) By relying solely on technological advancements to replace resources.
B) By using resources efficiently and promoting sustainable practices.
C) By overexploiting resources to meet increasing demands
D) By ignoring the impact of human activities on the environment.
  • 17. What is a structural adaptation seen in tadpoles?
A) Legs for hopping on land.
B) Gills for respiration
C) Lungs for breathing in water
D) Webbed feet for swimming
  • 18. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Pooter
B) Baermann funnel
C) Secchi disc
D) Hydrophotometer
  • 19. ............ Is used to measure pressure.
A) Hygrometer
B) Barometer
C) Photometer
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
B) Dome
C) Pyramid of number
D) Pyramid of energy
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