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) Bacteria causing pneumonia
C) Virus causing the flu
D) Fungi causing athlete's foot
  • 2. Autotrophs are organisms that:
A) None of the above
B) Depend on other organisms for food
C) Produce their own food
D) Break down dead organic matter
  • 3. Which of the following is an example of a vector?
A) Fungi causing athlete's foot
B) Virus causing the common cold
C) Bacteria causing food poisoning
D) Mosquito transmitting malaria
  • 4. Which of the following is NOT a role of the Red Cross Society?
A) Blood donation and transfusion services
B) Promoting health education
C) Conducting medical research
D) Providing humanitarian aid during disasters
  • 5. Decomposers play a crucial role in ecosystems by:
A) None of the above
B) Producing oxygen through photosynthesis
C) Breaking down dead organic matter
D) Providing food for other organisms
  • 6. In the laboratory, turbidity can be measured with a ..............
A) Spectrophotometer
B) Geiger muller counter
C) Turbidometer
D) Speedometry
  • 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 ability of organisms to change their habitat
B) The interdependence of organisms within an ecosystem.
C) The process of evolution through natural selection.
D) The adjustment of organisms to their environmental conditions.
  • 10. Which of the following structural adaptations is characteristic of fish?
A) Wings for flight
B) Strong jaws for hunting.
C) Gills for respiration
D) Scales for protection
  • 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: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
D) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
  • 12. What measures can be taken to control soil pollution?
A) Encouraging deforestation for urban development.
B) Disposing of hazardous waste in landfills.
C) Increasing the use of chemical fertilizers.
D) Implementing sustainable farming practices.
  • 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) Multiple fission.
C) Sexual reproduction.
D) Asexual reproduction
  • 15. Which of the following are examples of renewable resources that need to be conserved?
A) Plastic and synthetic materials.
B) Fossil fuels and minerals
C) Water and air.
D) Landfills and waste dumps.
  • 16. How can we ensure conservation of natural resources?
A) By overexploiting resources to meet increasing demands
B) By ignoring the impact of human activities on the environment.
C) By relying solely on technological advancements to replace resources.
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) 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) Hydrophotometer
B) Baermann funnel
C) Pooter
D) Secchi disc
  • 19. ............ Is used to measure pressure.
A) Barometer
B) Photometer
C) Hygrometer
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) Pyramid of energy
C) Pyramid of number
D) Dome
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