AIC SS 1 Biology 3rd C.A 2nd Term
  • 1. Which of the following is an example of a beneficial microorganism?
A) Bacteria causing pneumonia
B) Fungi causing athlete's foot
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) 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) Providing humanitarian aid during disasters
B) Blood donation and transfusion services
C) Promoting health education
D) Conducting medical research
  • 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) Turbidometer
C) Geiger muller counter
D) Speedometry
  • 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) Increased pollution levels in protected areas.
B) Extinction of species due to overprotection
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 process of evolution through natural selection.
C) The adjustment of organisms to their environmental conditions.
D) The ability of organisms to change their habitat
  • 10. Which of the following structural adaptations is characteristic of fish?
A) Scales for protection
B) Strong jaws for hunting.
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) Disposing of hazardous waste in landfills.
B) Implementing sustainable farming practices.
C) Increasing the use of chemical fertilizers.
D) Encouraging deforestation for urban development.
  • 13. How do unicellular organisms and invertebrates reproduce?
A) Through sexual reproduction only.
B) They do not reproduce.
C) Through asexual reproduction only.
D) Through both sexual and asexual reproduction.
  • 14. Which type of reproduction occurs in amoeba?
A) Sexual reproduction.
B) Multiple fission.
C) Asexual reproduction
D) Binary fission
  • 15. Which of the following are examples of renewable resources that need to be conserved?
A) Landfills and waste dumps.
B) Plastic and synthetic materials.
C) Water and air.
D) Fossil fuels and minerals
  • 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) Lungs for breathing in water
B) Legs for hopping on land.
C) Webbed feet for swimming
D) Gills for respiration
  • 18. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Baermann funnel
B) Hydrophotometer
C) Pooter
D) Secchi disc
  • 19. ............ Is used to measure pressure.
A) Colorimeter
B) Hygrometer
C) Barometer
D) Photometer
  • 20. The diagrammatic representation of the food chain in which producers form the base and the carnivores form the apex is called ...........
A) Dome
B) Pyramid
C) Pyramid of energy
D) Pyramid of number
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