AIC SS 1 Biology 3rd C.A 2nd Term
  • 1. Which of the following is an example of a beneficial microorganism?
A) Virus causing the flu
B) Bacteria causing pneumonia
C) Fungi causing athlete's foot
D) Bacteria aiding in digestion
  • 2. Autotrophs are organisms that:
A) Depend on other organisms for food
B) Break down dead organic matter
C) None of the above
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) Mosquito transmitting malaria
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) Conducting medical research
C) Providing humanitarian aid during disasters
D) Blood donation and transfusion services
  • 5. Decomposers play a crucial role in ecosystems by:
A) Producing oxygen through photosynthesis
B) None of the above
C) Providing food for other organisms
D) Breaking down dead organic matter
  • 6. In the laboratory, turbidity can be measured with a ..............
A) Speedometry
B) Turbidometer
C) Geiger muller counter
D) Spectrophotometer
  • 7. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Pathogens
B) Antibodies
C) Vectors
D) Antigens
  • 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 ability of organisms to change their habitat
B) The interdependence of organisms within an ecosystem.
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) Wings for flight
C) Scales for protection
D) Gills for respiration
  • 11. What are the sources, causes, and effects of air pollution?
A) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
B) Sources: Oil spills; Causes: Industrial waste; Effects: Water contamination.
C) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
D) Sources: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
  • 12. What measures can be taken to control soil pollution?
A) Encouraging deforestation for urban development.
B) Implementing sustainable farming practices.
C) Increasing the use of chemical fertilizers.
D) Disposing of hazardous waste in landfills.
  • 13. How do unicellular organisms and invertebrates reproduce?
A) They do not reproduce.
B) Through sexual reproduction only.
C) Through both sexual and asexual reproduction.
D) Through asexual reproduction only.
  • 14. Which type of reproduction occurs in amoeba?
A) Multiple fission.
B) Asexual reproduction
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) Landfills and waste dumps.
C) Plastic and synthetic materials.
D) Water and air.
  • 16. How can we ensure conservation of natural resources?
A) By using resources efficiently and promoting sustainable practices.
B) By relying solely on technological advancements to replace resources.
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) Lungs for breathing in water
B) Webbed feet for swimming
C) Gills for respiration
D) Legs for hopping on land.
  • 18. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Secchi disc
B) Pooter
C) Hydrophotometer
D) Baermann funnel
  • 19. ............ Is used to measure pressure.
A) Photometer
B) Barometer
C) Colorimeter
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) Dome
C) Pyramid
D) Pyramid of number
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