AIC SS 1 Biology Revision Test 2nd Term
  • 1. Which of the following is an example of a beneficial microorganism?
A) Fungi causing athlete's foot
B) Virus causing the flu
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) Vector-borne
B) Genetic inheritance
C) Waterborne
D) Airborne
  • 3. HIV stands for:
A) Highly Infectious Virus
B) Human Intestinal Virus
C) Human Influenza Virus
D) Human Immunodeficiency 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) Proper nutrition
B) Regular exercise
C) Adequate sleep
D) All of the above
  • 6. Which organization is responsible for coordinating international public health efforts?
A) UNICEF (United Nations Children's Fund)
B) WHO (World Health Organization)
C) NMA (National Medical Association)
D) Red Cross Society
  • 7. Autotrophs are organisms that:
A) Produce their own food
B) None of the above
C) Break down dead organic matter
D) Depend on other organisms for food
  • 8. Heterotrophs obtain their food by:
A) Photosynthesis
B) Decomposing organic matter
C) Chemosynthesis
D) Consuming other organisms
  • 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) Use of insecticides
B) Use of bed nets
C) Vaccination
D) Elimination of breeding sites
  • 11. Which of the following is NOT a role of the Red Cross Society?
A) Blood donation and transfusion services
B) Providing humanitarian aid during disasters
C) Promoting health education
D) Conducting medical research
  • 12. Decomposers play a crucial role in ecosystems by:
A) Providing food for other organisms
B) Producing oxygen through photosynthesis
C) None of the above
D) Breaking down dead organic matter
  • 13. In the laboratory, turbidity can be measured with a ..............
A) Spectrophotometer
B) Speedometry
C) Geiger muller counter
D) Turbidometer
  • 14. Organisms referred to as causative agents and disease-inducing micro-organisms are......
A) Antibodies
B) Antigens
C) Pathogens
D) Vectors
  • 15. Animal diseases caused by protozoa are the following except ......
A) Gummosis
B) Trichomoniasis
C) Coccidiosis
D) Trypanosomiasis
  • 16. The type of nutrition where organisms feed on dead and decaying organic materials is called -----
A) Saprophytic nutrition
B) Holophytic nutrition
C) Holozoic 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 extraction and exploitation of non-renewable resources.
C) The depletion of renewable resources for human use.
D) The disposal of waste materials in the environment.
  • 18. Which agencies are responsible for the conservation of soil, water, animals, and forests?
A) United Nations Educational, Scientific and Cultural Organization (UNESCO).
B) Environmental Protection Agency (EPA).
C) World Health Organization (WHO)
D) International Space Agency (ISA).
  • 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) Sustainable use of resources and preservation of natural habitats.
B) Increased pollution and habitat destruction.
C) Accelerated climate change and global warming.
D) Decreased biodiversity and ecosystem stability.
  • 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 acceptance of diverse cultural practices within a community
D) The ability of organisms to withstand extreme temperatures
  • 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 can survive but not thrive.
C) b) The range of temperatures where organisms can reproduce effectively.
D) The range of temperatures where organisms cannot survive.
  • 23. What does "geographic range" refer to?
A) The total land area covered by a particular organism or species.
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 number of species present in a given geographic location.
D) The range of latitudes where a species can be found.
  • 24. What is adaptation in living organisms?
A) The adjustment of organisms to their environmental conditions.
B) The interdependence of organisms within an ecosystem.
C) The ability of organisms to change their habitat
D) The process of evolution through natural selection.
  • 25. How does the availability of water affect adaptive modifications in organisms?
A) It influences the development of specialized structures or behaviors.
B) It disrupts the genetic diversity of species.
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) Wings for flight
C) Gills for respiration
D) Strong jaws for hunting.
  • 27. Which structural adaptation is typical of toads?
A) Suction cup-like toes for climbing
B) Shells for protection
C) Poison glands for defense.
D) Long tongues for catching prey.
  • 28. What is a structural adaptation observed in lizards?
A) Large ears for enhanced hearing.
B) Camouflage for blending with the surroundings.
C) Wings for flying.
D) Pouches for carrying offspring.
  • 29. Which of the following structural adaptations is seen in prawns?
A) Suction cups for attaching to surfaces.
B) Feathers for insulation
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: Oil spills; Causes: Industrial waste; Effects: Water contamination.
B) Sources: Industrial emissions; Causes: Burning fossil fuels; Effects: Respiratory illnesses.
C) Sources: Noise from transportation; Causes: Overfishing; Effects: Disruption of aquatic ecosystems.
D) Sources: Pesticides and herbicides; Causes: Deforestation; Effects: Soil erosion.
  • 31. How can water pollution be controlled?
A) By promoting deforestation for agricultural purposes.
B) By using plastic extensively for packaging.
C) By implementing proper waste treatment and management.
D) By reducing carbon dioxide emissions.
  • 32. What measures can be taken to control soil pollution?
A) Increasing the use of chemical fertilizers.
B) Disposing of hazardous waste in landfills.
C) Implementing sustainable farming practices.
D) Encouraging deforestation for urban development.
  • 33. How do unicellular organisms and invertebrates reproduce?
A) Through asexual reproduction only.
B) They do not reproduce.
C) Through sexual reproduction only.
D) Through both sexual and asexual reproduction.
  • 34. Which type of reproduction occurs in amoeba?
A) Binary fission
B) Sexual reproduction.
C) Multiple fission.
D) Asexual reproduction
  • 35. How does Paramecium reproduce?
A) Through asexual reproduction.
B) Through sexual reproduction
C) Through multiple fission
D) Through binary fission
  • 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) Landfills and waste dumps.
D) Water and air.
  • 38. 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.
  • 39. 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
  • 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) External fertilization
B) Internal fertilization - lay eggs
C) Parthenogenesis
D) Binary fission
  • 42. Which of the following is a disease of the liver?
A) Malaria
B) Pneumonia
C) Osteoporosis
D) Cirrhosis
  • 43. One of the following is not a factor that affects population.
A) Heat
B) Water
C) Competition
D) Adaptation
  • 44. One fo the following is not an abiotic factor.
A) Edaphic
B) Topographic
C) Chemical
D) Competition
  • 45. One of the following is used for collecting tiny organisms that live in thw soil water.
A) Baermann funnel
B) Pooter
C) Hydrophotometer
D) Secchi disc
  • 46. ............ Is used to measure pressure.
A) Colorimeter
B) Barometer
C) Photometer
D) Hygrometer
  • 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) Pyramid
C) Dome
D) Pyramid of number
  • 49. Energy flow is ------------.
A) Undirectional
B) Cyclic
C) Directional
D) Rotational
  • 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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