AIC SS 1 Biology Revision Test 2nd Term
  • 1. Which of the following is an example of a beneficial microorganism?
A) Virus causing the flu
B) Bacteria aiding in digestion
C) Fungi causing athlete's foot
D) Bacteria causing pneumonia
  • 2. Which of the following is NOT a mode of transmission for diseases caused by microorganisms?
A) Waterborne
B) Airborne
C) Genetic inheritance
D) Vector-borne
  • 3. HIV stands for:
A) Human Immunodeficiency Virus
B) Human Intestinal Virus
C) Highly Infectious Virus
D) Human Influenza Virus
  • 4. Which of the following is a symptom of HIV?
A) All of the above
B) Fatigue
C) Persistent cough
D) Skin rash
  • 5. The maintenance of good health involves:
A) All of the above
B) Regular exercise
C) Adequate sleep
D) Proper nutrition
  • 6. Which organization is responsible for coordinating international public health efforts?
A) WHO (World Health Organization)
B) UNICEF (United Nations Children's Fund)
C) NMA (National Medical Association)
D) Red Cross Society
  • 7. Autotrophs are organisms that:
A) Break down dead organic matter
B) None of the above
C) Produce their own food
D) Depend on other organisms for food
  • 8. Heterotrophs obtain their food by:
A) Chemosynthesis
B) Consuming other organisms
C) Photosynthesis
D) Decomposing organic matter
  • 9. Which of the following is an example of a vector?
A) Virus causing the common cold
B) Bacteria causing food poisoning
C) Mosquito transmitting malaria
D) Fungi causing athlete's foot
  • 10. Which of the following is NOT a way to control vectors?
A) Elimination of breeding sites
B) Use of bed nets
C) Use of insecticides
D) Vaccination
  • 11. Which of the following is NOT a role of the Red Cross Society?
A) Conducting medical research
B) Promoting health education
C) Providing humanitarian aid during disasters
D) Blood donation and transfusion services
  • 12. 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
  • 13. In the laboratory, turbidity can be measured with a ..............
A) Geiger muller counter
B) Spectrophotometer
C) Speedometry
D) Turbidometer
  • 14. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antibodies
B) Pathogens
C) Antigens
D) Vectors
  • 15. Animal diseases caused by protozoa are the following except ......
A) Gummosis
B) Trypanosomiasis
C) Trichomoniasis
D) Coccidiosis
  • 16. The type of nutrition where organisms feed on dead and decaying organic materials is called -----
A) Holozoic nutrition
B) Parasitic nutrition
C) Holophytic nutrition
D) Saprophytic nutrition
  • 17. Which of the following best defines the conservation of natural resources?
A) The depletion of renewable resources for human use.
B) The disposal of waste materials in the environment.
C) The extraction and exploitation of non-renewable resources.
D) The preservation and sustainable use of natural resources.
  • 18. Which agencies are responsible for the conservation of soil, water, animals, and forests?
A) World Health Organization (WHO)
B) International Space Agency (ISA).
C) United Nations Educational, Scientific and Cultural Organization (UNESCO).
D) Environmental Protection Agency (EPA).
  • 19. What are some problems associated with conservation?
A) Increased pollution levels in protected areas.
B) Excessive funding and resources allocated to conservation efforts
C) Lack of public awareness and participation
D) Extinction of species due to overprotection
  • 20. What are the benefits of conservation?
A) Sustainable use of resources and preservation of natural habitats.
B) Decreased biodiversity and ecosystem stability.
C) Increased pollution and habitat destruction.
D) Accelerated climate change and global warming.
  • 21. In ecology, what does "tolerance" refer to?
    .
A) The capacity of organisms to adapt to environmental stressors.
B) The extent to which organisms can reproduce successfully.
C) The ability of organisms to withstand extreme temperatures
D) The acceptance of diverse cultural practices within a community
  • 22. What is the concept of the minimum and maximum range of tolerance?
A) The range of temperatures where organisms experience minimal stress.
B) b) The range of temperatures where organisms can reproduce effectively.
C) The range of temperatures where organisms cannot survive.
D) The range of temperatures where organisms can survive but not thrive.
  • 23. What does "geographic range" refer to?
A) The number of species present in a given geographic location.
B) b) The number of species present in a given geographic location. c) The range of latitudes where a species can be found. d) The migratory pattern of organisms across continents.
C) The total land area covered by a particular organism or species.
D) The range of latitudes where a species can be found.
  • 24. 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.
  • 25. How does the availability of water affect adaptive modifications in organisms?
A) It disrupts the genetic diversity of species.
B) It influences the development of specialized structures or behaviors.
C) It limits the growth of populations
D) It accelerates evolutionary processes
  • 26. 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
  • 27. Which structural adaptation is typical of toads?
A) Shells for protection
B) Poison glands for defense.
C) Suction cup-like toes for climbing
D) Long tongues for catching prey.
  • 28. What is a structural adaptation observed in lizards?
A) Pouches for carrying offspring.
B) Wings for flying.
C) Camouflage for blending with the surroundings.
D) Large ears for enhanced hearing.
  • 29. Which of the following structural adaptations is seen in prawns?
A) Feathers for insulation
B) Suction cups for attaching to surfaces.
C) Compound eyes for a wide field of vision.
D) Poisonous stingers for defense.
  • 30. What are the sources, causes, and effects of air pollution?
A) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
B) Sources: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
C) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
D) Sources: Oil spills; Causes: Industrial waste; Effects: Water contamination.
  • 31. How can water pollution be controlled?
A) By using plastic extensively for packaging.
B) By reducing carbon dioxide emissions.
C) By implementing proper waste treatment and management.
D) By promoting deforestation for agricultural purposes.
  • 32. What measures can be taken to control soil pollution?
A) Increasing the use of chemical fertilizers.
B) Implementing sustainable farming practices.
C) Disposing of hazardous waste in landfills.
D) Encouraging deforestation for urban development.
  • 33. How do unicellular organisms and invertebrates reproduce?
A) They do not reproduce.
B) Through both sexual and asexual reproduction.
C) Through sexual reproduction only.
D) Through asexual reproduction only.
  • 34. Which type of reproduction occurs in amoeba?
A) Asexual reproduction
B) Binary fission
C) Sexual reproduction.
D) Multiple fission.
  • 35. How does Paramecium reproduce?
A) Through binary fission
B) Through multiple fission
C) Through asexual reproduction.
D) Through sexual reproduction
  • 36. Which type of reproduction is observed in earthworms?
A) Sexual reproduction.
B) Multiple fission.
C) Asexual reproduction
D) Binary fission
  • 37. 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.
  • 38. 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.
  • 39. What is a structural adaptation seen in tadpoles?
A) Webbed feet for swimming
B) Gills for respiration
C) Legs for hopping on land.
D) Lungs for breathing in water
  • 40. How does reproduction take place in houseflies?
A) Binary fission
B) Parthenogenesis
C) External fertilization
D) Internal fertilization
  • 41. What is the method of reproduction in snails?
A) Parthenogenesis
B) External fertilization
C) Binary fission
D) Internal fertilization - lay eggs
  • 42. Which of the following is a disease of the liver?
A) Pneumonia
B) Cirrhosis
C) Osteoporosis
D) Malaria
  • 43. One of the following is not a factor that affects population.
A) Adaptation
B) Competition
C) Heat
D) Water
  • 44. One fo the following is not an abiotic factor.
A) Topographic
B) Chemical
C) Edaphic
D) Competition
  • 45. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Secchi disc
B) Baermann funnel
C) Pooter
D) Hydrophotometer
  • 46. ............ Is used to measure pressure.
A) Hygrometer
B) Colorimeter
C) Photometer
D) Barometer
  • 47. The feeding level in a food chain or food web is known as --------.
A) Trophic level
B) Food chain
C) Pyramid of number
D) Pyramid of energy
  • 48. 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) Dome
C) Pyramid
D) Pyramid of number
  • 49. Energy flow is ------------.
A) Cyclic
B) Rotational
C) Directional
D) Undirectional
  • 50. In the pyramid of energy, the producers at the first trophic level contain --------- of the energy.
A) Best
B) Less
C) Most
D) Least
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