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) Virus causing the flu
D) Bacteria causing pneumonia
  • 2. Autotrophs are organisms that:
A) Break down dead organic matter
B) Depend on other organisms for food
C) Produce their own food
D) None of the above
  • 3. Which of the following is an example of a vector?
A) Fungi causing athlete's foot
B) Virus causing the common cold
C) Mosquito transmitting malaria
D) Bacteria causing food poisoning
  • 4. Which of the following is NOT a role of the Red Cross Society?
A) Providing humanitarian aid during disasters
B) Promoting health education
C) Conducting medical research
D) Blood donation and transfusion services
  • 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) Turbidometer
B) Spectrophotometer
C) Speedometry
D) Geiger muller counter
  • 7. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Vectors
B) Antibodies
C) Antigens
D) Pathogens
  • 8. What are some problems associated with conservation?
A) Excessive funding and resources allocated to conservation efforts
B) Extinction of species due to overprotection
C) Increased pollution levels in protected areas.
D) Lack of public awareness and participation
  • 9. What is adaptation in living organisms?
A) The interdependence of organisms within an ecosystem.
B) The ability of organisms to change their habitat
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) Strong jaws for hunting.
B) Wings for flight
C) Gills for respiration
D) Scales for protection
  • 11. What are the sources, causes, and effects of air pollution?
A) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
B) Sources: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
C) Sources: Oil spills; Causes: Industrial waste; Effects: Water contamination.
D) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
  • 12. What measures can be taken to control soil pollution?
A) Increasing the use of chemical fertilizers.
B) Encouraging deforestation for urban development.
C) Implementing sustainable farming practices.
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) Binary fission
B) Asexual reproduction
C) Multiple fission.
D) Sexual reproduction.
  • 15. Which of the following are examples of renewable resources that need to be conserved?
A) Water and air.
B) Plastic and synthetic materials.
C) Landfills and waste dumps.
D) Fossil fuels and minerals
  • 16. How can we ensure conservation of natural resources?
A) By ignoring the impact of human activities on the environment.
B) By overexploiting resources to meet increasing demands
C) By using resources efficiently and promoting sustainable practices.
D) By relying solely on technological advancements to replace resources.
  • 17. What is a structural adaptation seen in tadpoles?
A) Legs for hopping on land.
B) Webbed feet for swimming
C) Gills for respiration
D) Lungs for breathing in water
  • 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) Barometer
B) Hygrometer
C) Colorimeter
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) Pyramid of energy
B) Pyramid
C) Dome
D) Pyramid of number
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