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) Produce their own food
B) Depend on other organisms for food
C) None of the above
D) Break down dead organic matter
  • 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) 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) 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) Geiger muller counter
B) Speedometry
C) Spectrophotometer
D) Turbidometer
  • 7. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antibodies
B) Vectors
C) Antigens
D) Pathogens
  • 8. What are some problems associated with conservation?
A) Lack of public awareness and participation
B) Excessive funding and resources allocated to conservation efforts
C) Extinction of species due to overprotection
D) Increased pollution levels in protected areas.
  • 9. What is adaptation in living organisms?
A) The ability of organisms to change their habitat
B) The process of evolution through natural selection.
C) The adjustment of organisms to their environmental conditions.
D) The interdependence of organisms within an ecosystem.
  • 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: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
B) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
C) Sources: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
D) Sources: Oil spills; Causes: Industrial waste; Effects: Water contamination.
  • 12. What measures can be taken to control soil pollution?
A) Increasing the use of chemical fertilizers.
B) Implementing sustainable farming practices.
C) Encouraging deforestation for urban development.
D) Disposing of hazardous waste in landfills.
  • 13. How do unicellular organisms and invertebrates reproduce?
A) Through sexual reproduction only.
B) Through both sexual and asexual reproduction.
C) They do not reproduce.
D) Through asexual reproduction only.
  • 14. Which type of reproduction occurs in amoeba?
A) Asexual reproduction
B) Binary fission
C) Multiple fission.
D) Sexual reproduction.
  • 15. Which of the following are examples of renewable resources that need to be conserved?
A) Fossil fuels and minerals
B) Plastic and synthetic materials.
C) Water and air.
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) Lungs for breathing in water
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) Pooter
B) Hydrophotometer
C) Secchi disc
D) Baermann funnel
  • 19. ............ Is used to measure pressure.
A) Photometer
B) Hygrometer
C) Barometer
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 of number
B) Pyramid
C) Pyramid of energy
D) Dome
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