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) Fungi causing athlete's foot
C) Bacteria causing pneumonia
D) Bacteria aiding in digestion
  • 2. Which of the following is NOT a mode of transmission for diseases caused by microorganisms?
A) Genetic inheritance
B) Waterborne
C) Airborne
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) Fatigue
B) All of the above
C) Skin rash
D) Persistent cough
  • 5. The maintenance of good health involves:
A) Proper nutrition
B) All of the above
C) Adequate sleep
D) Regular exercise
  • 6. Which organization is responsible for coordinating international public health efforts?
A) UNICEF (United Nations Children's Fund)
B) Red Cross Society
C) WHO (World Health Organization)
D) NMA (National Medical Association)
  • 7. 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
  • 8. Heterotrophs obtain their food by:
A) Consuming other organisms
B) Chemosynthesis
C) Decomposing organic matter
D) Photosynthesis
  • 9. 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
  • 10. Which of the following is NOT a way to control vectors?
A) Elimination of breeding sites
B) Use of insecticides
C) Use of bed nets
D) Vaccination
  • 11. Which of the following is NOT a role of the Red Cross Society?
A) Promoting health education
B) Blood donation and transfusion services
C) Conducting medical research
D) Providing humanitarian aid during disasters
  • 12. 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
  • 13. In the laboratory, turbidity can be measured with a ..............
A) Spectrophotometer
B) Geiger muller counter
C) Speedometry
D) Turbidometer
  • 14. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antigens
B) Antibodies
C) Pathogens
D) Vectors
  • 15. Animal diseases caused by protozoa are the following except ......
A) Gummosis
B) Trypanosomiasis
C) Coccidiosis
D) Trichomoniasis
  • 16. The type of nutrition where organisms feed on dead and decaying organic materials is called -----
A) Holophytic nutrition
B) Parasitic nutrition
C) Saprophytic nutrition
D) Holozoic nutrition
  • 17. Which of the following best defines the conservation of natural resources?
A) The preservation and sustainable use of natural resources.
B) The disposal of waste materials in the environment.
C) The depletion of renewable resources for human use.
D) The extraction and exploitation of non-renewable resources.
  • 18. Which agencies are responsible for the conservation of soil, water, animals, and forests?
A) Environmental Protection Agency (EPA).
B) World Health Organization (WHO)
C) United Nations Educational, Scientific and Cultural Organization (UNESCO).
D) International Space Agency (ISA).
  • 19. What are some problems associated with conservation?
A) Lack of public awareness and participation
B) Excessive funding and resources allocated to conservation efforts
C) Increased pollution levels in protected areas.
D) Extinction of species due to overprotection
  • 20. What are the benefits of conservation?
A) Accelerated climate change and global warming.
B) Sustainable use of resources and preservation of natural habitats.
C) Decreased biodiversity and ecosystem stability.
D) Increased pollution and habitat destruction.
  • 21. In ecology, what does "tolerance" refer to?
    .
A) The acceptance of diverse cultural practices within a community
B) The capacity of organisms to adapt to environmental stressors.
C) The ability of organisms to withstand extreme temperatures
D) The extent to which organisms can reproduce successfully.
  • 22. What is the concept of the minimum and maximum range of tolerance?
A) b) The range of temperatures where organisms can reproduce effectively.
B) The range of temperatures where organisms experience minimal stress.
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 range of latitudes where a species can be found.
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 number of species present in a given geographic location.
  • 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 interdependence of organisms within an ecosystem.
D) The adjustment of organisms to their environmental conditions.
  • 25. How does the availability of water affect adaptive modifications in organisms?
A) It limits the growth of populations
B) It accelerates evolutionary processes
C) It influences the development of specialized structures or behaviors.
D) It disrupts the genetic diversity of species.
  • 26. Which of the following structural adaptations is characteristic of fish?
A) Scales for protection
B) Strong jaws for hunting.
C) Gills for respiration
D) Wings for flight
  • 27. Which structural adaptation is typical of toads?
A) Shells for protection
B) Suction cup-like toes for climbing
C) Long tongues for catching prey.
D) Poison glands for defense.
  • 28. What is a structural adaptation observed in lizards?
A) Camouflage for blending with the surroundings.
B) Pouches for carrying offspring.
C) Large ears for enhanced hearing.
D) Wings for flying.
  • 29. Which of the following structural adaptations is seen in prawns?
A) Poisonous stingers for defense.
B) Feathers for insulation
C) Suction cups for attaching to surfaces.
D) Compound eyes for a wide field of vision.
  • 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 implementing proper waste treatment and management.
B) By reducing carbon dioxide emissions.
C) By using plastic extensively for packaging.
D) By promoting deforestation for agricultural purposes.
  • 32. What measures can be taken to control soil pollution?
A) Disposing of hazardous waste in landfills.
B) Implementing sustainable farming practices.
C) Encouraging deforestation for urban development.
D) Increasing the use of chemical fertilizers.
  • 33. How do unicellular organisms and invertebrates reproduce?
A) Through asexual reproduction only.
B) Through sexual reproduction only.
C) They do not reproduce.
D) Through both sexual and asexual reproduction.
  • 34. Which type of reproduction occurs in amoeba?
A) Binary fission
B) Asexual reproduction
C) Sexual reproduction.
D) Multiple fission.
  • 35. How does Paramecium reproduce?
A) Through asexual reproduction.
B) Through multiple fission
C) Through binary fission
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) Plastic and synthetic materials.
B) Landfills and waste dumps.
C) Fossil fuels and minerals
D) Water and air.
  • 38. How can we ensure conservation of natural resources?
A) By relying solely on technological advancements to replace resources.
B) By ignoring the impact of human activities on the environment.
C) By using resources efficiently and promoting sustainable practices.
D) By overexploiting resources to meet increasing demands
  • 39. 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
  • 40. How does reproduction take place in houseflies?
A) Parthenogenesis
B) Binary fission
C) Internal fertilization
D) External fertilization
  • 41. What is the method of reproduction in snails?
A) Parthenogenesis
B) Binary fission
C) Internal fertilization - lay eggs
D) External fertilization
  • 42. Which of the following is a disease of the liver?
A) Osteoporosis
B) Pneumonia
C) Malaria
D) Cirrhosis
  • 43. One of the following is not a factor that affects population.
A) Competition
B) Adaptation
C) Water
D) Heat
  • 44. One fo the following is not an abiotic factor.
A) Topographic
B) Edaphic
C) Chemical
D) Competition
  • 45. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Secchi disc
B) Pooter
C) Hydrophotometer
D) Baermann funnel
  • 46. ............ Is used to measure pressure.
A) Barometer
B) Hygrometer
C) Photometer
D) Colorimeter
  • 47. The feeding level in a food chain or food web is known as --------.
A) Food chain
B) Pyramid of number
C) Trophic level
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
B) Pyramid of number
C) Dome
D) Pyramid of energy
  • 49. Energy flow is ------------.
A) Rotational
B) Directional
C) Cyclic
D) Undirectional
  • 50. In the pyramid of energy, the producers at the first trophic level contain --------- of the energy.
A) Less
B) Least
C) Most
D) Best
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