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