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) 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) Mosquito transmitting malaria
B) Bacteria causing food poisoning
C) Fungi causing athlete's foot
D) Virus causing the common cold
  • 4. Which of the following is NOT a role of the Red Cross Society?
A) Blood donation and transfusion services
B) Conducting medical research
C) Promoting health education
D) Providing humanitarian aid during disasters
  • 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) Turbidometer
B) Spectrophotometer
C) Speedometry
D) Geiger muller counter
  • 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) Lack of public awareness and participation
B) Extinction of species due to overprotection
C) Excessive funding and resources allocated to conservation efforts
D) Increased pollution levels in protected areas.
  • 9. What is adaptation in living organisms?
A) The adjustment of organisms to their environmental conditions.
B) The ability of organisms to change their habitat
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) Scales for protection
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: 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) Disposing of hazardous waste in landfills.
B) Encouraging deforestation for urban development.
C) Implementing sustainable farming practices.
D) Increasing the use of chemical fertilizers.
  • 13. How do unicellular organisms and invertebrates reproduce?
A) Through sexual reproduction only.
B) Through both sexual and asexual reproduction.
C) Through asexual reproduction only.
D) They do not reproduce.
  • 14. Which type of reproduction occurs in amoeba?
A) Binary fission
B) Multiple fission.
C) Asexual reproduction
D) Sexual reproduction.
  • 15. Which of the following are examples of renewable resources that need to be conserved?
A) Landfills and waste dumps.
B) Fossil fuels and minerals
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 overexploiting resources to meet increasing demands
C) By ignoring the impact of human activities on the environment.
D) By relying solely on technological advancements to replace resources.
  • 17. What is a structural adaptation seen in tadpoles?
A) Gills for respiration
B) Legs for hopping on land.
C) Webbed feet for swimming
D) Lungs for breathing in water
  • 18. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Pooter
B) Baermann funnel
C) Hydrophotometer
D) Secchi disc
  • 19. ............ Is used to measure pressure.
A) Colorimeter
B) Photometer
C) Hygrometer
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
B) Pyramid of energy
C) Dome
D) Pyramid of number
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